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Questions and Answers
Which nerve is responsible for motor function to the gluteus maximus?
Which nerve is responsible for motor function to the gluteus maximus?
What is the primary function of the Pudendal Nerve?
What is the primary function of the Pudendal Nerve?
Which structure do the sympathetic sacral splanchnic nerves primarily enter?
Which structure do the sympathetic sacral splanchnic nerves primarily enter?
Which of the following is NOT a major branch of the Sacral Plexus?
Which of the following is NOT a major branch of the Sacral Plexus?
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Which spinal nerves contribute to the formation of the Pelvic Splanchnics?
Which spinal nerves contribute to the formation of the Pelvic Splanchnics?
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What is the role of the Superior Hypogastric Plexus?
What is the role of the Superior Hypogastric Plexus?
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Which nerve is responsible for motor function to the tensor fascia lata?
Which nerve is responsible for motor function to the tensor fascia lata?
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Which of the following nerves carries parasympathetic fibers to the pelvic viscera?
Which of the following nerves carries parasympathetic fibers to the pelvic viscera?
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Which minor branch of the Sacral Plexus innervates the piriformis muscle?
Which minor branch of the Sacral Plexus innervates the piriformis muscle?
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Which of the following statements accurately describes the anterior wall of the pelvic cavity?
Which of the following statements accurately describes the anterior wall of the pelvic cavity?
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Which of the following arteries originates from the posterior trunk of the internal iliac artery?
Which of the following arteries originates from the posterior trunk of the internal iliac artery?
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What is the primary function of the sacral plexus in the pelvic cavity?
What is the primary function of the sacral plexus in the pelvic cavity?
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Which structure is not part of the lateral wall of the pelvic cavity?
Which structure is not part of the lateral wall of the pelvic cavity?
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Which statement is true regarding the pelvic fascia?
Which statement is true regarding the pelvic fascia?
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What distinguishes male from female arteries arising from the anterior trunk of the internal iliac artery?
What distinguishes male from female arteries arising from the anterior trunk of the internal iliac artery?
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What role do the sacrospinous and sacrotuberous ligaments play in the pelvic cavity?
What role do the sacrospinous and sacrotuberous ligaments play in the pelvic cavity?
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What is the role of the tendinous arch of the levator ani?
What is the role of the tendinous arch of the levator ani?
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Which statement about visceral fascia is correct?
Which statement about visceral fascia is correct?
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What anatomical feature separates the rectum from the pelvic diaphragm?
What anatomical feature separates the rectum from the pelvic diaphragm?
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Which of the following is true regarding the rectum's anatomical relationships?
Which of the following is true regarding the rectum's anatomical relationships?
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What pouches are formed by the peritoneum in females?
What pouches are formed by the peritoneum in females?
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What is the course of the uterine artery in relation to the ureter?
What is the course of the uterine artery in relation to the ureter?
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Which plexuses in the pelvic cavity are mentioned as interconnected?
Which plexuses in the pelvic cavity are mentioned as interconnected?
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What is a significant feature of the pelvic plexuses?
What is a significant feature of the pelvic plexuses?
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How does the rectal venous drainage connect to the portal system?
How does the rectal venous drainage connect to the portal system?
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Which statement accurately describes the lymphatic drainage of the pelvis?
Which statement accurately describes the lymphatic drainage of the pelvis?
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What forms the sacral plexus?
What forms the sacral plexus?
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Which nerve is specifically noted to not be a part of the sacral plexus?
Which nerve is specifically noted to not be a part of the sacral plexus?
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What is the main function of the coccygeal plexus?
What is the main function of the coccygeal plexus?
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Which of the following structures is primarily supplied by the vaginal artery?
Which of the following structures is primarily supplied by the vaginal artery?
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Which artery predominantly supplies the gluteal muscles and skin?
Which artery predominantly supplies the gluteal muscles and skin?
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What is the main function of the inferior vesical artery?
What is the main function of the inferior vesical artery?
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Which artery supplies the rectum and upper anal canal?
Which artery supplies the rectum and upper anal canal?
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The obturator artery primarily supplies which part of the body?
The obturator artery primarily supplies which part of the body?
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Which artery is considered a vestigial remnant and carried blood from the fetus to the placenta?
Which artery is considered a vestigial remnant and carried blood from the fetus to the placenta?
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The median sacral artery anastomoses with which of the following arteries?
The median sacral artery anastomoses with which of the following arteries?
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Where does the internal pudendal artery exit the pelvis?
Where does the internal pudendal artery exit the pelvis?
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Which artery usually arises from the umbilical artery?
Which artery usually arises from the umbilical artery?
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What anatomical structure does the superior rectal artery mainly supply?
What anatomical structure does the superior rectal artery mainly supply?
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Study Notes
Pelvic Cavity Gross Anatomy Learning Objectives
- Students should be able to accurately describe the walls, arteries, veins, lymphatics, nerves, pelvic fascial specializations, pelvic structures' relationship to the peritoneum, anatomy of the rectum and anal canal, including arteries, veins, lymphatics, innervation, and clinical considerations.
Pelvic Cavity Session Outline
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Walls of the Pelvic Cavity: Covers the anterior (pubic bone, symphysis, levator ani), lateral (ilium, ischium, obturator internus), and posterior (sacrum, coccyx) walls. Specific muscles and ligaments are detailed.
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Arteries of the Pelvic Cavity: Categorized by their origin from the internal iliac artery's posterior and anterior trunks, with distinct variations between male and female anatomy. Key arteries mentioned include iliolumbar, lateral sacral, superior gluteal, and internal pudendal.
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Veins of the Pelvic Cavity: Detailed description of interconnected venous plexuses present in pelvic organs (rectal, prostatic, uterine, vaginal, vesical). Their connection to vertebral venous plexuses and pathways back to the inferior vena cava will likely figure prominently.
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Lymphatics of the Pelvic Cavity: The lymphatic drainage pathways and nodes (aortic, internal iliac, inguinal) are described in relation to the pelvic organs.
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Nerves of the Pelvic Cavity: Includes the sacral plexus & coccygeal plexus and specific nerves such as the obturator nerve and sympathetic and parasympathetic nerves & their distribution.
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Pelvic Fascia: Includes parietal and visceral fascial specializations and their relation to pelvic organs. Structures mentioned include the pelvic diaphragm's tendinous arch and pudendal canal.
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Pelvic Structures and Peritoneum: The relationship of pelvic organs to the peritoneum and related pouches (e.g., female rectouterine pouch, male rectovesical pouch).
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Rectum and Anal Canal: Their anatomy (arteries, veins, lymphatics, innervation) and clinical considerations (e.g., internal/external hemorrhoids). Specific details about the pectinate line will likely be important.
Supplemental Reading
- Gray's Anatomy for Students, 4th Edition (2020) by Drake, Vogl, and Mitchell, Chapter 5. This resource is essential for further study of the topics. Diagrams (figures referenced in the outline) should also be studied closely.
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