Podcast
Questions and Answers
Which nerve of the lumbar plexus arises from T12?
Which nerve of the lumbar plexus arises from T12?
- Subcostal (correct)
- Femoral
- Ilio-inguinal
- Ilio-hypogastric
What does the ilio-inguinal nerve innervate?
What does the ilio-inguinal nerve innervate?
- Skin of the posterior thigh
- The gluteal muscles
- Skin of the superior anteromedial thigh and genital region (correct)
- Skin of the anterolateral abdominal wall
Where does the ilio-hypogastric nerve pass in relation to the quadratus lumborum?
Where does the ilio-hypogastric nerve pass in relation to the quadratus lumborum?
- Anterior surface (correct)
- Posterior surface
- Medial aspect
- Lateral aspect
What is the main function of the inferior vena cava?
What is the main function of the inferior vena cava?
What muscle is innervated by the lateral femoral cutaneous nerve of the lumbar plexus?
What muscle is innervated by the lateral femoral cutaneous nerve of the lumbar plexus?
What tributaries drain into the left renal vein?
What tributaries drain into the left renal vein?
What does the thoracic duct ultimately drain into?
What does the thoracic duct ultimately drain into?
Which structure corresponds with the origins of the intestinal lymphatic trunks?
Which structure corresponds with the origins of the intestinal lymphatic trunks?
Which artery supplies the diaphragm?
Which artery supplies the diaphragm?
What is the role of the lumbar plexus in the body?
What is the role of the lumbar plexus in the body?
What is located anterior to L1 and L2 as part of the lymphatic system?
What is located anterior to L1 and L2 as part of the lymphatic system?
Which of the following veins ascend alongside the lumbar vertebrae?
Which of the following veins ascend alongside the lumbar vertebrae?
Which muscle is not associated with the posterior abdominal wall?
Which muscle is not associated with the posterior abdominal wall?
Which of the following lymph nodes lies around the origins of the arteries in the abdominal region?
Which of the following lymph nodes lies around the origins of the arteries in the abdominal region?
What forms the inferior vena cava?
What forms the inferior vena cava?
Which muscle is primarily responsible for flexing the thigh at the hip?
Which muscle is primarily responsible for flexing the thigh at the hip?
What is the nerve supply of the Ilacus muscle?
What is the nerve supply of the Ilacus muscle?
Which ligament provides an attachment for the diaphragm over the aorta?
Which ligament provides an attachment for the diaphragm over the aorta?
Which structure is NOT part of the lumbar plexus?
Which structure is NOT part of the lumbar plexus?
What is the primary action of the Quadratus Lumborum?
What is the primary action of the Quadratus Lumborum?
Which is the correct blood supply for the inferior surface of the diaphragm?
Which is the correct blood supply for the inferior surface of the diaphragm?
What are the vertebral levels for the Caval opening of the diaphragm?
What are the vertebral levels for the Caval opening of the diaphragm?
Which component of the posterior abdominal wall has a major role in weight bearing?
Which component of the posterior abdominal wall has a major role in weight bearing?
Which lymphatic structure is most associated with the posterior abdominal wall?
Which lymphatic structure is most associated with the posterior abdominal wall?
Which of the following is a characteristic feature of the lumbar vertebrae?
Which of the following is a characteristic feature of the lumbar vertebrae?
What is the starting point of the abdominal aorta?
What is the starting point of the abdominal aorta?
Which structure does the abdominal aorta bifurcate into?
Which structure does the abdominal aorta bifurcate into?
What type of branches does the anterior midline of the abdominal aorta primarily consist of?
What type of branches does the anterior midline of the abdominal aorta primarily consist of?
Which arteries are considered paired visceral branches of the abdominal aorta?
Which arteries are considered paired visceral branches of the abdominal aorta?
Where does the abdominal aorta end?
Where does the abdominal aorta end?
Which structure passes posterior to the abdominal aorta?
Which structure passes posterior to the abdominal aorta?
What is the role of the splanchnic nerves and ganglia?
What is the role of the splanchnic nerves and ganglia?
Which arteries are classified as unpaired parietal branches of the abdominal aorta?
Which arteries are classified as unpaired parietal branches of the abdominal aorta?
Which fascia creates the medial arcuate ligament and is continuous with the iliac fascia?
Which fascia creates the medial arcuate ligament and is continuous with the iliac fascia?
What is the primary innervation of the diaphragm?
What is the primary innervation of the diaphragm?
Which type of drainage do the left inferior and left suprarenal veins specifically utilize?
Which type of drainage do the left inferior and left suprarenal veins specifically utilize?
What structure lies behind the peritoneum in the posterior abdominal wall?
What structure lies behind the peritoneum in the posterior abdominal wall?
Which of the following reflects a common misconception about the fascia in the posterior abdominal wall?
Which of the following reflects a common misconception about the fascia in the posterior abdominal wall?
Which nerves are primarily associated with sensory innervation in the abdominal region?
Which nerves are primarily associated with sensory innervation in the abdominal region?
What is the main artery supplying the posterior abdominal wall structures?
What is the main artery supplying the posterior abdominal wall structures?
Which fascia layer contributes to the formation of the lateral arcuate ligament?
Which fascia layer contributes to the formation of the lateral arcuate ligament?
Which of the following statements about the lymphatic drainage in the context provided is correct?
Which of the following statements about the lymphatic drainage in the context provided is correct?
What is the primary role of the sympathetic nerves within the posterior abdominal wall?
What is the primary role of the sympathetic nerves within the posterior abdominal wall?
What is the primary purpose of materials made available by an electronic database?
What is the primary purpose of materials made available by an electronic database?
Which structure is prohibited from further reproduction according to the licensing conditions?
Which structure is prohibited from further reproduction according to the licensing conditions?
What is expected of individuals using materials from the database?
What is expected of individuals using materials from the database?
Which of the following best describes the restrictions on printed materials?
Which of the following best describes the restrictions on printed materials?
Which of the following actions would violate the licensing conditions for electronic databases?
Which of the following actions would violate the licensing conditions for electronic databases?
What is one of the key requirements when using these materials for study?
What is one of the key requirements when using these materials for study?
Which of the following describes the general nature of licensing conditions for the materials?
Which of the following describes the general nature of licensing conditions for the materials?
What is the innervation of the adductor muscles of the medial thigh?
What is the innervation of the adductor muscles of the medial thigh?
Where does the lateral femoral cutaneous nerve of the lumbar plexus pass in relation to the iliac crest?
Where does the lateral femoral cutaneous nerve of the lumbar plexus pass in relation to the iliac crest?
Which nerve is responsible for innervating the iliacus muscle?
Which nerve is responsible for innervating the iliacus muscle?
What is the primary function of the femoral nerve?
What is the primary function of the femoral nerve?
Which of the following statements about the genitofemoral nerve is correct?
Which of the following statements about the genitofemoral nerve is correct?
What is the primary function of the psoas major muscle?
What is the primary function of the psoas major muscle?
Which vertebral level corresponds to the aortic hiatus of the diaphragm?
Which vertebral level corresponds to the aortic hiatus of the diaphragm?
Which ligament is associated with the attachment of the diaphragm over the aorta?
Which ligament is associated with the attachment of the diaphragm over the aorta?
What anatomical feature of the lumbar vertebrae aids in weight bearing?
What anatomical feature of the lumbar vertebrae aids in weight bearing?
What is the origin of the quadratus lumborum muscle?
What is the origin of the quadratus lumborum muscle?
What nerve provides innervation to the iliacus muscle?
What nerve provides innervation to the iliacus muscle?
Which muscle acts as a weak flexor of the vertebral column?
Which muscle acts as a weak flexor of the vertebral column?
What is the orientation of the superior and inferior facets of the lumbar vertebrae?
What is the orientation of the superior and inferior facets of the lumbar vertebrae?
What supplies the blood to the inferior surface of the diaphragm?
What supplies the blood to the inferior surface of the diaphragm?
What is the origin of the ilio-hypogastric nerve?
What is the origin of the ilio-hypogastric nerve?
Which nerve innervates the skin of the anterolateral abdominal wall?
Which nerve innervates the skin of the anterolateral abdominal wall?
The ilio-inguinal nerve traverses which structure to reach the inguinal canal?
The ilio-inguinal nerve traverses which structure to reach the inguinal canal?
Which nerve is specifically responsible for innervating the superior anteromedial thigh?
Which nerve is specifically responsible for innervating the superior anteromedial thigh?
Where does the subcostal nerve pass in relation to the quadratus lumborum?
Where does the subcostal nerve pass in relation to the quadratus lumborum?
What is the role of the lumbar plexus?
What is the role of the lumbar plexus?
What area does the ilio-inguinal nerve pass through in relation to the ASIS?
What area does the ilio-inguinal nerve pass through in relation to the ASIS?
Which nerve of the lumbar plexus does not arise from the lumbar region?
Which nerve of the lumbar plexus does not arise from the lumbar region?
In which area does the ilio-hypogastric nerve primarily innervate?
In which area does the ilio-hypogastric nerve primarily innervate?
What structure does the ilio-inguinal nerve traverse to reach the inguinal region?
What structure does the ilio-inguinal nerve traverse to reach the inguinal region?
Which of the following structures is NOT associated with the right inferior phrenic vein?
Which of the following structures is NOT associated with the right inferior phrenic vein?
Which fascia forms the medial arcuate ligament in the posterior abdominal wall?
Which fascia forms the medial arcuate ligament in the posterior abdominal wall?
What type of nerves provide sensory innervation in the abdominal region?
What type of nerves provide sensory innervation in the abdominal region?
Which of the following statements about the retroperitoneal space is correct?
Which of the following statements about the retroperitoneal space is correct?
Which nerve is responsible for the motor innervation of the diaphragm?
Which nerve is responsible for the motor innervation of the diaphragm?
What is the primary content of the fascia lining the posterior abdominal wall?
What is the primary content of the fascia lining the posterior abdominal wall?
Which structure lies between the parietal peritoneum and the muscles of the posterior abdominal wall?
Which structure lies between the parietal peritoneum and the muscles of the posterior abdominal wall?
Which of the following veins drains into the inferior vena cava?
Which of the following veins drains into the inferior vena cava?
Which layer contributes to the formation of the lateral arcuate ligament?
Which layer contributes to the formation of the lateral arcuate ligament?
Which statement about lymphatic drainage in the posterior abdominal wall is accurate?
Which statement about lymphatic drainage in the posterior abdominal wall is accurate?
What provides a layer of protection and support to the kidneys, according to their anatomical coverings?
What provides a layer of protection and support to the kidneys, according to their anatomical coverings?
Which structure is NOT included in the renal hilum?
Which structure is NOT included in the renal hilum?
Which pole of the right kidney is positioned supremely above the right colic flexure?
Which pole of the right kidney is positioned supremely above the right colic flexure?
What is the primary layer of covering that directly surrounds the kidney?
What is the primary layer of covering that directly surrounds the kidney?
What is the role of the renal medulla in kidney function?
What is the role of the renal medulla in kidney function?
Which organ is located anteriorly to the left kidney and separated by peritoneum?
Which organ is located anteriorly to the left kidney and separated by peritoneum?
What structures are found within the renal sinus?
What structures are found within the renal sinus?
Which anatomical layer encloses the kidneys, suprarenal glands, and perinephric fat?
Which anatomical layer encloses the kidneys, suprarenal glands, and perinephric fat?
What is the primary role of the renal arteries?
What is the primary role of the renal arteries?
What typically separates the right kidney from the liver?
What typically separates the right kidney from the liver?
What are the three layers of coverings that surround the kidneys?
What are the three layers of coverings that surround the kidneys?
Which nerve primarily innervates the kidneys?
Which nerve primarily innervates the kidneys?
Which structure is located anterior to the right kidney?
Which structure is located anterior to the right kidney?
What structure is part of the macroscopic anatomy of the kidney?
What structure is part of the macroscopic anatomy of the kidney?
What is the primary blood supply to each kidney?
What is the primary blood supply to each kidney?
What anatomical feature of the kidney aids in its classification as retroperitoneal?
What anatomical feature of the kidney aids in its classification as retroperitoneal?
Where is the hilum of the left kidney located in relation to the spine?
Where is the hilum of the left kidney located in relation to the spine?
What is a common function of the connective tissues surrounding the kidney?
What is a common function of the connective tissues surrounding the kidney?
How much do the positions of the kidneys change during respiration?
How much do the positions of the kidneys change during respiration?
What is the lymphatic drainage of the kidneys primarily responsible for?
What is the lymphatic drainage of the kidneys primarily responsible for?
What is the primary function of the renal arteries?
What is the primary function of the renal arteries?
Which nerves contribute to sympathetic innervation of the kidneys?
Which nerves contribute to sympathetic innervation of the kidneys?
Which structure lies posterior to the kidneys?
Which structure lies posterior to the kidneys?
What is true about the left renal vein in its anatomical position?
What is true about the left renal vein in its anatomical position?
Which of the following provides the primary arterial supply to a specific segment of the kidney?
Which of the following provides the primary arterial supply to a specific segment of the kidney?
Which layer serves as the outermost covering of the kidneys?
Which layer serves as the outermost covering of the kidneys?
What is the relationship of the right kidney in terms of rib positioning?
What is the relationship of the right kidney in terms of rib positioning?
Which of the following best describes the renal lymphatic drainage?
Which of the following best describes the renal lymphatic drainage?
Which of the following structures provides the main parasympathetic innervation to the kidneys?
Which of the following structures provides the main parasympathetic innervation to the kidneys?
How does the renal artery on the right side differ from the left?
How does the renal artery on the right side differ from the left?
What is the length of the ureters?
What is the length of the ureters?
Which artery primarily supplies the abdominal part of the ureters?
Which artery primarily supplies the abdominal part of the ureters?
At which point does the ureter experience a constriction?
At which point does the ureter experience a constriction?
What structure does the ureter pass through when it enters the urinary bladder?
What structure does the ureter pass through when it enters the urinary bladder?
Which of the following best describes the relationship of the ureters during their abdominal course?
Which of the following best describes the relationship of the ureters during their abdominal course?
In females, which artery crosses anteriorly over the abdominal part of the ureter?
In females, which artery crosses anteriorly over the abdominal part of the ureter?
What is the venous drainage corresponding to the blood supply of the pelvic part of the ureters?
What is the venous drainage corresponding to the blood supply of the pelvic part of the ureters?
What structure does the internal iliac artery primarily supply?
What structure does the internal iliac artery primarily supply?
Which artery is associated with the inferior aspect of the bladder in males?
Which artery is associated with the inferior aspect of the bladder in males?
What is a characteristic of the umbilical artery after birth?
What is a characteristic of the umbilical artery after birth?
What is a role of the obturator artery?
What is a role of the obturator artery?
Which artery does the inferior vesical artery anastomose with?
Which artery does the inferior vesical artery anastomose with?
What is the primary function of the urinary bladder?
What is the primary function of the urinary bladder?
Where is the urinary bladder located in adults when it is empty?
Where is the urinary bladder located in adults when it is empty?
Which structure surrounds the internal urethral orifice in males?
Which structure surrounds the internal urethral orifice in males?
What shape does the urinary bladder assume when it is empty?
What shape does the urinary bladder assume when it is empty?
During what age does the bladder typically begin to enter the pelvic cavity in children?
During what age does the bladder typically begin to enter the pelvic cavity in children?
What is the purpose of the smooth muscle loops around the ureteric orifices?
What is the purpose of the smooth muscle loops around the ureteric orifices?
What area of the bladder is referred to as the trigone?
What area of the bladder is referred to as the trigone?
What is the primary source of nerve supply to the ureters?
What is the primary source of nerve supply to the ureters?
Which of the following surfaces of the bladder is covered with peritoneum?
Which of the following surfaces of the bladder is covered with peritoneum?
Which of the following ligaments is associated with males?
Which of the following ligaments is associated with males?
What artery supplies the fundus and neck of the urinary bladder in females?
What artery supplies the fundus and neck of the urinary bladder in females?
Which nerves provide parasympathetic fibers to the urinary bladder?
Which nerves provide parasympathetic fibers to the urinary bladder?
Which structure is located posterior to the urinary bladder in females?
Which structure is located posterior to the urinary bladder in females?
What is the primary blood supply for the anterosuperior part of the male urinary bladder?
What is the primary blood supply for the anterosuperior part of the male urinary bladder?
Which anatomical feature aids in the drainage of the urinary bladder?
Which anatomical feature aids in the drainage of the urinary bladder?
Which of the following describes the function of sympathetic fibers in males regarding the urinary bladder?
Which of the following describes the function of sympathetic fibers in males regarding the urinary bladder?
Where do the sympathetic fibers that supply the urinary bladder originate?
Where do the sympathetic fibers that supply the urinary bladder originate?
Which structure forms the vesical venous plexus in males?
Which structure forms the vesical venous plexus in males?
What is the role of sympathetic nerves concerning pain sensation in relation to the urinary bladder?
What is the role of sympathetic nerves concerning pain sensation in relation to the urinary bladder?
Which part of the female urethra is surrounded by the external urethral sphincter?
Which part of the female urethra is surrounded by the external urethral sphincter?
What is the length of the male urethra?
What is the length of the male urethra?
What anatomical feature marks the prostatic part of the male urethra?
What anatomical feature marks the prostatic part of the male urethra?
Which glands open into the lateral margin of the external urethral orifice in females?
Which glands open into the lateral margin of the external urethral orifice in females?
The spongy part of the male urethra is surrounded by which type of tissue?
The spongy part of the male urethra is surrounded by which type of tissue?
Which section of the male urethra passes through the deep perineal pouch?
Which section of the male urethra passes through the deep perineal pouch?
What is the primary function of the female urethra?
What is the primary function of the female urethra?
What feature characterizes the preprostatic part of the male urethra?
What feature characterizes the preprostatic part of the male urethra?
What structure is found at the end of the male urethra?
What structure is found at the end of the male urethra?
Where does the male urethra begin?
Where does the male urethra begin?
At what week of embryogenesis do the metanephroi become functional?
At what week of embryogenesis do the metanephroi become functional?
What is the primary structure responsible for the formation of the urinary bladder?
What is the primary structure responsible for the formation of the urinary bladder?
During the relocation of the kidneys, where do the kidneys move to?
During the relocation of the kidneys, where do the kidneys move to?
Which structure contributes to the formation of the common duct connecting the kidneys to the bladder?
Which structure contributes to the formation of the common duct connecting the kidneys to the bladder?
What anatomical consequence occurs due to the revascularization of the kidneys?
What anatomical consequence occurs due to the revascularization of the kidneys?
What initiates the apoptosis of the common duct during the development of the urinary system?
What initiates the apoptosis of the common duct during the development of the urinary system?
What structure does the ureteric bud originate from?
What structure does the ureteric bud originate from?
In males, where does the mesonephric duct open after shifting during urinary system development?
In males, where does the mesonephric duct open after shifting during urinary system development?
During which week does the mesonephros become functional?
During which week does the mesonephros become functional?
Which nephric structure is characterized as the definitive structure responsible for urine formation?
Which nephric structure is characterized as the definitive structure responsible for urine formation?
Which structure is formed from the mesonephric tubules in males?
Which structure is formed from the mesonephric tubules in males?
What is the primary function of the cap mesenchyme in metanephros development?
What is the primary function of the cap mesenchyme in metanephros development?
From which embryonic layer does the smooth muscle of the bladder wall develop?
From which embryonic layer does the smooth muscle of the bladder wall develop?
How does the position of the right kidney differ from that of the left kidney?
How does the position of the right kidney differ from that of the left kidney?
What is the final structure formed by the fusion of the S-shaped renal vesicle and ureteric stalk?
What is the final structure formed by the fusion of the S-shaped renal vesicle and ureteric stalk?
Which part of the kidney forms from the ureteric bud?
Which part of the kidney forms from the ureteric bud?
What happens to the cranial mesonephri by the end of the fifth week?
What happens to the cranial mesonephri by the end of the fifth week?
What is the end product of nephrogenesis?
What is the end product of nephrogenesis?
Which component of the kidney is crucial for filtering blood and forming urine?
Which component of the kidney is crucial for filtering blood and forming urine?
At what stage does the metanephros begin to develop lobes?
At what stage does the metanephros begin to develop lobes?
What is the primary structure that develops into the definitive kidney in humans?
What is the primary structure that develops into the definitive kidney in humans?
Which embryological structure gives rise to the urinary bladder and urethra?
Which embryological structure gives rise to the urinary bladder and urethra?
During nephron formation, which of the following structures is critical for the induction of metanephric development?
During nephron formation, which of the following structures is critical for the induction of metanephric development?
What function does the ureteric bud perform during the development of the urinary system?
What function does the ureteric bud perform during the development of the urinary system?
Which term describes the process in which kidneys ascend from their original position during embryonic development?
Which term describes the process in which kidneys ascend from their original position during embryonic development?
What embryonic layer gives rise to the urogenital ridges, which are critical to urinary system development?
What embryonic layer gives rise to the urogenital ridges, which are critical to urinary system development?
Which nephric structure is functional during early development and can be observed in lower vertebrates?
Which nephric structure is functional during early development and can be observed in lower vertebrates?
At which stage does the pronephros develop in humans before regressing?
At which stage does the pronephros develop in humans before regressing?
What major embryological event occurs as the mesonephric ducts fuse with the cloaca?
What major embryological event occurs as the mesonephric ducts fuse with the cloaca?
What is the role of the caudal end of the mesonephric duct during urinary system development?
What is the role of the caudal end of the mesonephric duct during urinary system development?
What role does the SRY gene play in sexual differentiation?
What role does the SRY gene play in sexual differentiation?
During which week do primordial germ cells begin their migration towards the mesonephric kidneys?
During which week do primordial germ cells begin their migration towards the mesonephric kidneys?
What structures are formed from the paramesonephric ducts in females?
What structures are formed from the paramesonephric ducts in females?
What is the significance of somatic support cells in the development of gonads?
What is the significance of somatic support cells in the development of gonads?
What is a key characteristic of external genitalia development in males?
What is a key characteristic of external genitalia development in males?
What condition arises from a mutation in the androgen receptor gene?
What condition arises from a mutation in the androgen receptor gene?
What indicates a discordance between genetic, gonadal, and phenotypic sex?
What indicates a discordance between genetic, gonadal, and phenotypic sex?
Which of the following structures arises from the indifferent external genitalia?
Which of the following structures arises from the indifferent external genitalia?
What hormonal factor is mainly responsible for male sex differentiation?
What hormonal factor is mainly responsible for male sex differentiation?
What do the proximal parts of the paramesonephric ducts develop into?
What do the proximal parts of the paramesonephric ducts develop into?
What structure do the fused caudal ends of the paramesonephric ducts form?
What structure do the fused caudal ends of the paramesonephric ducts form?
Which of the following describes the role of the sinusal tubercle in female genital development?
Which of the following describes the role of the sinusal tubercle in female genital development?
What is the function of the urorectal septum during genital development?
What is the function of the urorectal septum during genital development?
During which week does the urethral groove form along the ventral surface of the urogenital plate?
During which week does the urethral groove form along the ventral surface of the urogenital plate?
What happens to the endodermal membrane that separates the vaginal lumen from the urogenital sinus?
What happens to the endodermal membrane that separates the vaginal lumen from the urogenital sinus?
What external structure forms as a result of the genital tubercle during the development of external genitalia?
What external structure forms as a result of the genital tubercle during the development of external genitalia?
How do the labioscrotal swellings relate to the development of external genitalia?
How do the labioscrotal swellings relate to the development of external genitalia?
What are the cranial openings of the uterine tubes called?
What are the cranial openings of the uterine tubes called?
What is the result of the presence of the SRY gene during fetal development?
What is the result of the presence of the SRY gene during fetal development?
What happens to the mesonephric ducts in females during development?
What happens to the mesonephric ducts in females during development?
How does the absence of male hormones affect the development of the gubernaculum?
How does the absence of male hormones affect the development of the gubernaculum?
During which developmental phase do the testes make their initial descent into the inguinal canal?
During which developmental phase do the testes make their initial descent into the inguinal canal?
What role does abdominal pressure play in the descent of the testes?
What role does abdominal pressure play in the descent of the testes?
Which structure develops from the paramesonephric ducts in females?
Which structure develops from the paramesonephric ducts in females?
What occurs to the tunica vaginalis shortly before birth in males?
What occurs to the tunica vaginalis shortly before birth in males?
Which of the following correctly summarizes the development of external genitalia?
Which of the following correctly summarizes the development of external genitalia?
What happens to the cranial suspensory ligament during the development of testes?
What happens to the cranial suspensory ligament during the development of testes?
What is the role of somatic support cells in the development of the reproductive system?
What is the role of somatic support cells in the development of the reproductive system?
What structure forms the glans urethra and external penile meatus during male external genitalia development?
What structure forms the glans urethra and external penile meatus during male external genitalia development?
What is the effect of dihydrotestosterone on the perineal region during male genital development?
What is the effect of dihydrotestosterone on the perineal region during male genital development?
In female external genitalia development, what becomes of the urethral folds?
In female external genitalia development, what becomes of the urethral folds?
Which hormone is primarily responsible for the downstream effects leading to male genital structure development?
Which hormone is primarily responsible for the downstream effects leading to male genital structure development?
Which part develops into the vestibule of the vagina during female external genitalia development?
Which part develops into the vestibule of the vagina during female external genitalia development?
What anatomical structure does the gubernaculum extend to in both males and females?
What anatomical structure does the gubernaculum extend to in both males and females?
What happens to the labioscrotal swellings in female external genital development?
What happens to the labioscrotal swellings in female external genital development?
In male development, which folds fuse to enclose the penile urethra?
In male development, which folds fuse to enclose the penile urethra?
What happens to the vaginal process in females during inguinal canal development?
What happens to the vaginal process in females during inguinal canal development?
Which of the following does NOT occur during male external genitalia development?
Which of the following does NOT occur during male external genitalia development?
What do somatic support cells differentiate into in the absence of the SRY gene?
What do somatic support cells differentiate into in the absence of the SRY gene?
Which structure develops from the paramesonephric ducts in female genital development?
Which structure develops from the paramesonephric ducts in female genital development?
Which hormone is critical in promoting the differentiation of male genital ducts during weeks 8-12?
Which hormone is critical in promoting the differentiation of male genital ducts during weeks 8-12?
During which weeks do the seminal vesicles develop from the mesonephric duct?
During which weeks do the seminal vesicles develop from the mesonephric duct?
What is the role of the surrounding mesenchyme in prostate gland development?
What is the role of the surrounding mesenchyme in prostate gland development?
Which structure is primarily responsible for transporting ova from the ovaries to the uterus?
Which structure is primarily responsible for transporting ova from the ovaries to the uterus?
What is the primary function of the ovaries in the female reproductive system?
What is the primary function of the ovaries in the female reproductive system?
During fertilization, where does the sperm typically encounter the ovum?
During fertilization, where does the sperm typically encounter the ovum?
Which hormone is primarily produced by the ovaries and is crucial for the regulation of the menstrual cycle?
Which hormone is primarily produced by the ovaries and is crucial for the regulation of the menstrual cycle?
Which ligament provides support to the uterus and is crucial for maintaining its position in the pelvis?
Which ligament provides support to the uterus and is crucial for maintaining its position in the pelvis?
Which ligament attaches the ovaries to the lateral angle of the uterus?
Which ligament attaches the ovaries to the lateral angle of the uterus?
Where do the ovarian arteries originate from?
Where do the ovarian arteries originate from?
What structure guides the released egg into the uterine tubes for fertilization?
What structure guides the released egg into the uterine tubes for fertilization?
Which artery primarily supplies the uterus?
Which artery primarily supplies the uterus?
What is the primary role of the round ligament in females?
What is the primary role of the round ligament in females?
Which hormone is primarily produced by the ovaries?
Which hormone is primarily produced by the ovaries?
Which class of ligaments is primarily responsible for holding the uterus and ovaries in place?
Which class of ligaments is primarily responsible for holding the uterus and ovaries in place?
What happens to the surface of the ovary after eggs are ovulated?
What happens to the surface of the ovary after eggs are ovulated?
What is the role of the mesovarium in the female reproductive system?
What is the role of the mesovarium in the female reproductive system?
What is the primary function of the uterine tubes?
What is the primary function of the uterine tubes?
Which of the following hormones is primarily involved in the regulation of the menstrual cycle?
Which of the following hormones is primarily involved in the regulation of the menstrual cycle?
What ligaments provide support to the uterus?
What ligaments provide support to the uterus?
Where does fertilization of an ovum most commonly occur?
Where does fertilization of an ovum most commonly occur?
What is the primary role of ovaries in the female reproductive system?
What is the primary role of ovaries in the female reproductive system?
Which nerve carries visceral afferent fibers related to pain in the reproductive tract?
Which nerve carries visceral afferent fibers related to pain in the reproductive tract?
What type of fibers innervate the smooth muscles of the reproductive tract?
What type of fibers innervate the smooth muscles of the reproductive tract?
What is the role of the uterine tubes in female reproductive anatomy?
What is the role of the uterine tubes in female reproductive anatomy?
Which lymph nodes drain the body of the uterus?
Which lymph nodes drain the body of the uterus?
During fertilization, where does the sperm typically meet the egg?
During fertilization, where does the sperm typically meet the egg?
What is the role of the deep perineal nerve in the context of the vagina?
What is the role of the deep perineal nerve in the context of the vagina?
Which hormone is primarily responsible for regulating the menstrual cycle?
Which hormone is primarily responsible for regulating the menstrual cycle?
What type of fibers do the pelvic splanchnic nerves carry?
What type of fibers do the pelvic splanchnic nerves carry?
What is the function of the round ligament of the uterus?
What is the function of the round ligament of the uterus?
What layer of the uterus is primarily responsible for its contractions during childbirth?
What layer of the uterus is primarily responsible for its contractions during childbirth?
Which hormone is responsible for preparing the endometrium for implantation of a blastocyst?
Which hormone is responsible for preparing the endometrium for implantation of a blastocyst?
Where does the fertilized egg implant within the female reproductive system?
Where does the fertilized egg implant within the female reproductive system?
Which of the following is NOT a structure associated with the uterine tubes?
Which of the following is NOT a structure associated with the uterine tubes?
What is the main role of estrogen in the female reproductive system?
What is the main role of estrogen in the female reproductive system?
Which part of the uterine tube is the site where fertilization typically occurs?
Which part of the uterine tube is the site where fertilization typically occurs?
What is the primary function of the fimbriae found on the infundibulum of the uterine tubes?
What is the primary function of the fimbriae found on the infundibulum of the uterine tubes?
Which ligament is a remnant of the gubernaculum and helps support the ovary?
Which ligament is a remnant of the gubernaculum and helps support the ovary?
What is the primary anatomical structure that covers the uterus, uterine tubes, and ovaries?
What is the primary anatomical structure that covers the uterus, uterine tubes, and ovaries?
Which portion of the uterine tubes extends from the superior end of the uterus to the lateral pelvic wall?
Which portion of the uterine tubes extends from the superior end of the uterus to the lateral pelvic wall?
Which of the following ligaments contains smooth muscle and may contain endopelvic fascia?
Which of the following ligaments contains smooth muscle and may contain endopelvic fascia?
Which part of the uterine tube is primarily involved in the passage of the ovum into the uterine cavity?
Which part of the uterine tube is primarily involved in the passage of the ovum into the uterine cavity?
What is the relationship between the ovarian ligament and the uterus?
What is the relationship between the ovarian ligament and the uterus?
Which of the following structures is NOT part of the female external genitalia?
Which of the following structures is NOT part of the female external genitalia?
What is the primary function of the clitoris in the female external genitalia?
What is the primary function of the clitoris in the female external genitalia?
Which term best describes the spectrum that includes biological sex variations?
Which term best describes the spectrum that includes biological sex variations?
What are the major components of the nerve supply for the female external genitalia?
What are the major components of the nerve supply for the female external genitalia?
What is one significant social implication of differentiating sex from gender?
What is one significant social implication of differentiating sex from gender?
Which of the following correctly describes intersex variations?
Which of the following correctly describes intersex variations?
Which part of the female external genitalia serves as a vestibule for the vagina?
Which part of the female external genitalia serves as a vestibule for the vagina?
What term refers to the biological features that often characterize being male or female?
What term refers to the biological features that often characterize being male or female?
Which of the following best illustrates a misconception about gender identity?
Which of the following best illustrates a misconception about gender identity?
Which glands are part of the female external genitalia and contribute to lubrication?
Which glands are part of the female external genitalia and contribute to lubrication?
What is the primary anatomical structure located anterior to the pubic symphysis?
What is the primary anatomical structure located anterior to the pubic symphysis?
Which part of the vulva contains hairless skin and surrounds the vestibule?
Which part of the vulva contains hairless skin and surrounds the vestibule?
Which structure is primarily responsible for sexual arousal among the external genitalia?
Which structure is primarily responsible for sexual arousal among the external genitalia?
What is the term used to describe the area between the labia majora?
What is the term used to describe the area between the labia majora?
Which glands are located on the medial aspects of the labia minora and secrete mucus?
Which glands are located on the medial aspects of the labia minora and secrete mucus?
What mental association does the term 'pudendum' have with its Latin root?
What mental association does the term 'pudendum' have with its Latin root?
Which structure may cover the vaginal orifice and can rupture during sexual intercourse?
Which structure may cover the vaginal orifice and can rupture during sexual intercourse?
How are the bulbs of the vestibule related to the overall anatomy of the external genitalia?
How are the bulbs of the vestibule related to the overall anatomy of the external genitalia?
Which part of the female external genitalia is the most innervated and has a dense supply of sensory endings?
Which part of the female external genitalia is the most innervated and has a dense supply of sensory endings?
What change occurs to the posterior commissure after childbirth?
What change occurs to the posterior commissure after childbirth?
What tissue is homologous with the bulb of the penis?
What tissue is homologous with the bulb of the penis?
Which glands are located posterolateral to the vaginal orifice and secrete mucus during sexual arousal?
Which glands are located posterolateral to the vaginal orifice and secrete mucus during sexual arousal?
Which nerve primarily supplies sensation to the external genitalia?
Which nerve primarily supplies sensation to the external genitalia?
What artery serves as the main arterial supply to the external genitalia?
What artery serves as the main arterial supply to the external genitalia?
Which structure connects the anterior ends of the bulbs of the vestibule to the glans clitoris?
Which structure connects the anterior ends of the bulbs of the vestibule to the glans clitoris?
Which nerve provides motor innervation to most of the muscles of the perineum?
Which nerve provides motor innervation to most of the muscles of the perineum?
Which of the following statements is true regarding the pudendal canal?
Which of the following statements is true regarding the pudendal canal?
What role do the greater vestibular glands primarily play?
What role do the greater vestibular glands primarily play?
Which component is responsible for the sensory innervation of the clitoris?
Which component is responsible for the sensory innervation of the clitoris?
What significance do the bulbs of vestibule have in the anatomy of female external genitalia?
What significance do the bulbs of vestibule have in the anatomy of female external genitalia?
What structure joins the duct of the seminal vesicle to form the ejaculatory duct?
What structure joins the duct of the seminal vesicle to form the ejaculatory duct?
Which layer is the dartos fascia continuous with in terms of anatomical structure?
Which layer is the dartos fascia continuous with in terms of anatomical structure?
Where do the ejaculatory ducts open in the male reproductive system?
Where do the ejaculatory ducts open in the male reproductive system?
Which of the following is NOT a component of the spermatic cord?
Which of the following is NOT a component of the spermatic cord?
What is the primary function of the alkaline fluid produced by the seminal vesicles?
What is the primary function of the alkaline fluid produced by the seminal vesicles?
Which artery is primarily responsible for the blood supply to the testes?
Which artery is primarily responsible for the blood supply to the testes?
How is the scrotum divided in terms of anatomical compartments?
How is the scrotum divided in terms of anatomical compartments?
Which of the following nerves provides autonomic innervation to the testes?
Which of the following nerves provides autonomic innervation to the testes?
What anatomical structure is located posterior to the prostate and separates it from the rectum?
What anatomical structure is located posterior to the prostate and separates it from the rectum?
Which structure is responsible for transporting sperm from the epididymis to the ejaculatory duct?
Which structure is responsible for transporting sperm from the epididymis to the ejaculatory duct?
What is the primary function of the spermatic cord?
What is the primary function of the spermatic cord?
Which structure is responsible for the storage and maturation of sperm?
Which structure is responsible for the storage and maturation of sperm?
What is the blood supply primarily responsible for delivering nutrients to the testes?
What is the blood supply primarily responsible for delivering nutrients to the testes?
Which nerve is primarily responsible for the sensory and autonomic innervation of the testes?
Which nerve is primarily responsible for the sensory and autonomic innervation of the testes?
Which of the following comprises the layers covering the spermatic cord?
Which of the following comprises the layers covering the spermatic cord?
What is the role of the vas deferens in the male reproductive system?
What is the role of the vas deferens in the male reproductive system?
Which gland provides lubrication for the urethra and is located near the base of the penis?
Which gland provides lubrication for the urethra and is located near the base of the penis?
What is the anatomical location of the testes?
What is the anatomical location of the testes?
What physiological process occurs in the seminiferous tubules of the testes?
What physiological process occurs in the seminiferous tubules of the testes?
What separates the scrotum from the abdominal cavity?
What separates the scrotum from the abdominal cavity?
Which structure is responsible for the production of sperm in the testes?
Which structure is responsible for the production of sperm in the testes?
What is the primary blood supply to the testes?
What is the primary blood supply to the testes?
Which layer covers the testes and allows movement within the scrotum?
Which layer covers the testes and allows movement within the scrotum?
Which part of the male reproductive system connects the testes to the epididymis?
Which part of the male reproductive system connects the testes to the epididymis?
What is the main function of the epididymis?
What is the main function of the epididymis?
What is the tunica albuginea primarily made of?
What is the tunica albuginea primarily made of?
Which structure is NOT considered an internal genital organ in males?
Which structure is NOT considered an internal genital organ in males?
What hormone is primarily produced by the testes?
What hormone is primarily produced by the testes?
Which accessory gland contributes to the composition of seminal fluid?
Which accessory gland contributes to the composition of seminal fluid?
Which structure does the ductus deferens connect to?
Which structure does the ductus deferens connect to?
What is the primary function of the pampiniform plexus in the spermatic cord?
What is the primary function of the pampiniform plexus in the spermatic cord?
Which artery directly supplies blood to the testes?
Which artery directly supplies blood to the testes?
What is the role of the ductus deferens in male reproductive anatomy?
What is the role of the ductus deferens in male reproductive anatomy?
Which type of fibers are found in the testicular plexus of nerves?
Which type of fibers are found in the testicular plexus of nerves?
What structure does the tail of the epididymis continue as?
What structure does the tail of the epididymis continue as?
Where does the left testicular vein drain?
Where does the left testicular vein drain?
How many efferent ductules connect to the head of the epididymis?
How many efferent ductules connect to the head of the epididymis?
Which anatomical feature helps maintain the optimal temperature for spermatogenesis?
Which anatomical feature helps maintain the optimal temperature for spermatogenesis?
What is the function of the ampulla in the ductus deferens?
What is the function of the ampulla in the ductus deferens?
Which structure is located on the posterior surface of the testis?
Which structure is located on the posterior surface of the testis?
Which artery supplies the corpus spongiosum and spongy urethra?
Which artery supplies the corpus spongiosum and spongy urethra?
What is the primary function of the deep dorsal vein?
What is the primary function of the deep dorsal vein?
What type of nervous supply is primarily responsible for erection?
What type of nervous supply is primarily responsible for erection?
Which lymph nodes drain the skin of the penis?
Which lymph nodes drain the skin of the penis?
Which muscles assist in compressing veins during an erection?
Which muscles assist in compressing veins during an erection?
What is the role of cavernous nerves in penile blood flow?
What is the role of cavernous nerves in penile blood flow?
The deep artery of the penis primarily serves which part?
The deep artery of the penis primarily serves which part?
Which structure serves as a major drainage point for erectile tissue?
Which structure serves as a major drainage point for erectile tissue?
From which spinal segments do the primary nerves supplying the penis originate?
From which spinal segments do the primary nerves supplying the penis originate?
The artery of the bulb of the penis supplies which of the following?
The artery of the bulb of the penis supplies which of the following?
What structure prevents the backward flow of semen into the bladder?
What structure prevents the backward flow of semen into the bladder?
Which part of the penis serves as the main erectile tissue responsible for erection?
Which part of the penis serves as the main erectile tissue responsible for erection?
What is the primary arterial supply to the penis?
What is the primary arterial supply to the penis?
Which nerve is responsible for stimulating secretion from the prostate during ejaculation?
Which nerve is responsible for stimulating secretion from the prostate during ejaculation?
Which structure is found ventrally in the penis and contains the urethra?
Which structure is found ventrally in the penis and contains the urethra?
The prostatic utricle in males is considered an embryological remnant of which structure?
The prostatic utricle in males is considered an embryological remnant of which structure?
Which plexus is responsible for draining lymph from the prostate gland?
Which plexus is responsible for draining lymph from the prostate gland?
What is the primary function of the suspensory ligament of the penis?
What is the primary function of the suspensory ligament of the penis?
What is the main function of the cavernous nerves supplied to the erectile tissues?
What is the main function of the cavernous nerves supplied to the erectile tissues?
Which of the following correctly describes the role of the fundiform ligament?
Which of the following correctly describes the role of the fundiform ligament?
The ducts that open into the prostatic sinuses allow for the passage of which fluid?
The ducts that open into the prostatic sinuses allow for the passage of which fluid?
What type of tissue surrounds each erectile body of the penis?
What type of tissue surrounds each erectile body of the penis?
What structure in the penis serves as a common outlet for both urine and semen?
What structure in the penis serves as a common outlet for both urine and semen?
Which structure is responsible for the double-layered covering of the glans penis?
Which structure is responsible for the double-layered covering of the glans penis?
Which component of the penis is responsible for its rigidity during erection?
Which component of the penis is responsible for its rigidity during erection?
The inferior vesical artery is primarily responsible for supplying blood to which area?
The inferior vesical artery is primarily responsible for supplying blood to which area?
Where are the crura of the penis attached?
Where are the crura of the penis attached?
Which structure is primarily responsible for the rigidity of the penis during erection?
Which structure is primarily responsible for the rigidity of the penis during erection?
What type of erectile tissue is primarily found in the penis?
What type of erectile tissue is primarily found in the penis?
Which fascial layer ties the penis's erectile bodies together?
Which fascial layer ties the penis's erectile bodies together?
Which urethral feature is located at the tip of the glans penis?
Which urethral feature is located at the tip of the glans penis?
Which of the following ligaments connects the penis to the pubic symphysis?
Which of the following ligaments connects the penis to the pubic symphysis?
What is the primary tissue composition of the penis?
What is the primary tissue composition of the penis?
What role does the bulbourethral gland play in male reproductive anatomy?
What role does the bulbourethral gland play in male reproductive anatomy?
Which nerve is primarily involved in the erectile response?
Which nerve is primarily involved in the erectile response?
Which lymphatic drainage route does the penis primarily utilize?
Which lymphatic drainage route does the penis primarily utilize?
Which component surrounds and protects the erectile tissues of the penis?
Which component surrounds and protects the erectile tissues of the penis?
Which artery branches off to supply the glans penis specifically?
Which artery branches off to supply the glans penis specifically?
What is the function of the corpus spongiosum?
What is the function of the corpus spongiosum?
What is a primary function of the perineum in the human body?
What is a primary function of the perineum in the human body?
Which muscles primarily compose the pelvic diaphragm?
Which muscles primarily compose the pelvic diaphragm?
How does the pelvic diaphragm contribute to pelvic support?
How does the pelvic diaphragm contribute to pelvic support?
What nerve primarily supplies the pelvic diaphragm?
What nerve primarily supplies the pelvic diaphragm?
Which pathology is commonly associated with pelvic floor disorders?
Which pathology is commonly associated with pelvic floor disorders?
What structure provides a boundary to the perineum?
What structure provides a boundary to the perineum?
Which of the following describes the anal triangle of the perineum?
Which of the following describes the anal triangle of the perineum?
What is the primary role of the muscles forming the pelvic diaphragm?
What is the primary role of the muscles forming the pelvic diaphragm?
Which of the following statements is correct regarding pelvic floor disorders?
Which of the following statements is correct regarding pelvic floor disorders?
What contributes to the stabilization of the pelvic cavity during physical activity?
What contributes to the stabilization of the pelvic cavity during physical activity?
What is the primary function of the pelvic diaphragm?
What is the primary function of the pelvic diaphragm?
Which of the following muscles is part of the levator ani complex?
Which of the following muscles is part of the levator ani complex?
What anatomical feature allows for the passage of the urethra and vagina in females?
What anatomical feature allows for the passage of the urethra and vagina in females?
How does the puborectalis muscle contribute to continence?
How does the puborectalis muscle contribute to continence?
The coccygeus muscle is primarily involved in which function?
The coccygeus muscle is primarily involved in which function?
Which component of the pelvic diaphragm forms a sling around the rectum?
Which component of the pelvic diaphragm forms a sling around the rectum?
What is a common consequence of weakness in the pelvic diaphragm?
What is a common consequence of weakness in the pelvic diaphragm?
Which muscle is primarily responsible for lateral pelvic wall coverage?
Which muscle is primarily responsible for lateral pelvic wall coverage?
Which nerve primarily innervates the pelvic floor muscles?
Which nerve primarily innervates the pelvic floor muscles?
What role does the tendinous arch play in the pelvic diaphragm?
What role does the tendinous arch play in the pelvic diaphragm?
What is the primary function of the perineal muscles in both sexes?
What is the primary function of the perineal muscles in both sexes?
Which muscle is primarily involved in compressing the bulb of the penis during ejaculation?
Which muscle is primarily involved in compressing the bulb of the penis during ejaculation?
What nerve supplies the levator ani muscle?
What nerve supplies the levator ani muscle?
Which condition may arise from dysfunction of the pelvic floor muscles?
Which condition may arise from dysfunction of the pelvic floor muscles?
The perineal membrane is primarily responsible for dividing which anatomical space?
The perineal membrane is primarily responsible for dividing which anatomical space?
What structure lies posterior to the vaginal vestibule in females?
What structure lies posterior to the vaginal vestibule in females?
Which part of the pelvic diaphragm closes the posterior part of the pelvic outlet?
Which part of the pelvic diaphragm closes the posterior part of the pelvic outlet?
What is the role of the superficial perineal space in both sexes?
What is the role of the superficial perineal space in both sexes?
Which of the following statements is true regarding the urogenital hiatus?
Which of the following statements is true regarding the urogenital hiatus?
Which structure is not a component of the anal triangle?
Which structure is not a component of the anal triangle?
Flashcards
Abdominal Aorta Location
Abdominal Aorta Location
Starts at T12 (thoracic vertebra 12), passing through the aortic hiatus of the diaphragm, and ends at L4 (lumbar vertebra 4) where it bifurcates into common iliac arteries.
Abdominal Aorta Branches
Abdominal Aorta Branches
The abdominal aorta has three major planes of branches: unpaired visceral (middle), paired visceral (sides), and parietal branches (posterior).
Unpaired Visceral Branches
Unpaired Visceral Branches
Branches supplying the digestive system, including the celiac trunk, superior mesenteric artery, and inferior mesenteric artery.
Paired Visceral Branches
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Median Sacral Artery
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Common Iliac Arteries
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Sympathetic Trunk and Ganglia
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Splanchnic Nerves
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Inferior Vena Cava
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Inferior Vena Cava Tributaries
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Hepatic Portal Vein
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Aortic Lymphatic Nodes
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Lymphatic Trunks
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Thoracic Duct
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Cisterna Chyli
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Lumbar Lymph Nodes
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Aortic Hiatus
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Pre-aortic Lymph Nodes
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Lumbar Plexus
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Subcostal Nerve
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Ilio-hypogastric Nerve
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Ilio-inguinal Nerve
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Lumbar Vertebrae
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Sacrum
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Psoas Major: Origin
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Psoas Major: Action
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Quadratus Lumborum: Action
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Iliacus: Origin & Insertion
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Diaphragm: Attachments
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Diaphragm: Openings
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Diaphragm: Nerve Supply
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Retroperitoneal Space
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Retroperitoneal Structures
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Psoas Fascia
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Quadratus Lumborum Fascia
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Structures on Posterior Abdominal Wall
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Lymphatic Drainage
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Sympathetic Nerves
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Posterior Abdominal Wall Bony Components
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Posterior Abdominal Wall Muscles: Psoas Major
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Posterior Abdominal Wall Muscles: Quadratus Lumborum
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Posterior Abdominal Wall Muscles: Iliacus
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Structures on the Posterior Abdominal Wall
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Iliacus Action
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What is the Retroperitoneal Space?
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What are Retroperitoneal Structures?
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Abdominal Aorta
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Genitofemoral nerve - Where does it pass?
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Genitofemoral nerve - What does it innervate?
Genitofemoral nerve - What does it innervate?
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Lateral cutaneous nerve of thigh - Location?
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Femoral nerve - What does it innervate?
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Obturator nerve - Where does it pass?
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Lumbar Plexus Function
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Psoas Major: Origin & Function
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Iliacus: Origin & Function
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Hilum of Left Kidney
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Kidney's Blood Supply
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Kidney's Nerve Supply
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Lymphatic Drainage of Kidneys
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Urinary System Components
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Ureter Function
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Urethra Function
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Transpyloric Plane
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Renal Capsule
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Perinephric Fat
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Renal Fascia
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Renal Medulla
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Kidney Lymphatic Drainage
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Pubovesical Ligaments
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Prostatic Plexus
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Detrusor Muscle
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Internal Urethral Sphincter
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Sympathetic Innervation of Bladder
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Ureters: Nerve Supply
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Ureteric Pain Referral
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Urinary Bladder: Overview
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Urinary Bladder: Location in Infants and Children
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Urinary Bladder: Shape - Empty
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Urinary Bladder: Parts - Apex
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Urinary Bladder: Parts - Base
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What innervates the anterior aspect of the female external genitalia?
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Pelvic Diaphragm
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What is the pelvic cavity?
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Perineal Membrane
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Urogenital Hiatus
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Bulbospongiosus Muscle
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Study Notes
Urogenital Anatomy: Posterior Abdominal Wall
- Lecture 1: Covers the posterior abdominal wall
- Lecturer: Ms Kerri Keet, Senior Lecturer, Division of Clinical Anatomy, [email protected]
- Location: Room 4021, Level 4, Tygerberg Campus
- Outcomes: Students should be able to name and describe bony components, muscles, and structures of the posterior abdominal wall, including origin, insertion, action, innervation, and blood supply.
Bony Components of the Posterior Abdominal Wall
- Contains five lumbar vertebrae and intervertebral discs
- Structure provides stability and support
- Important for spinal movement and weight distribution
Muscles of the Posterior Abdominal Wall
- Psoas Major & Minor: Located anterior to vertebral bodies. Originates from lumbar vertebrae. Inserts into the lesser trochanter of the femur. Innervated by anterior rami of L1, L2, and L3. Function: Flexes thigh at hip in conjunction with iliacus.
- Iliacus: Originates laterally on iliac fossa. Inserts into lesser trochanter of femur, and is innervated by femoral nerve. Function: Flexes the thigh at the hip joint
- Quadratus Lumborum: Originates from the iliolumbar ligament and iliac crest. Inserts into the transverse processes of L1 through L4 vertebrae inferior aspect of rib 12. Innervated by anterior rami of T12, L1,2,3, and L4. Function: Depresses ribs, stabilizes rib 12 and assists in lateral flexion of the trunk
Structures of the Posterior Abdominal Wall
- Nerves (Lumbar Plexus, Sympathetic nerves): Provides motor and sensory function in the area
- Arteries (abdominal aorta and branches): Deliver oxygenated blood to the region
- Veins (inferior vena cava and tributaries): Drain deoxygenated blood from the area
- Lymphatic vessels and lymph nodes: Drains lymph from the region
- Fascia: Layers of connective tissue supporting the abdominal wall
Diaphragm
- Structure & attachments: The diaphragm is a dome-shaped muscle separating the thoracic and abdominal cavities. It is composed of a central tendon and surrounding muscular sections (sternal, costal, and lumbar).
- Position: Position varies based on breathing, posture, and abdominal viscera position
- Blood supply: Inferior phrenic arteries and veins supply blood to the diaphragm
- Nerve: Phrenic nerves (C3, C4, C5) innervate the diaphragm
- Openings and vertebral levels:
- Caval opening: Inferior Vena Cava: T8
- Esophageal hiatus: T10
- Aortic hiatus: T12
Retroperitoneal Space and Fascia
- Structures: The space behind the peritoneum lining the posterior abdominal wall includes structures like kidneys, ureters, and abdominal blood vessels.
- Retroperitoneal structures lie behind the peritoneum and supported by connective tissue layers, called fasciae (connective tissues).
- Fasciae named based on the structures (psoas, renal, thoracolumbar)
- Retroperitoneal spaces and membranes surround structures that are located behind the peritoneum
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