Podcast
Questions and Answers
Which bones collectively form the pelvis?
Which bones collectively form the pelvis?
- Femur and tibia
- Ilium, ischium, and pubis (correct)
- Patella and fibula
- Scapula and clavicle
What defines the boundary between the true pelvis and the perineum?
What defines the boundary between the true pelvis and the perineum?
- Pelvic diaphragm (correct)
- Pelvic inlet
- Pubic symphysis
- Pelvic outlet
Which feature is associated with determining the pelvic inlet?
Which feature is associated with determining the pelvic inlet?
- Acetabulum
- Obturator foramen
- Greater sciatic notch
- Linea terminalis (correct)
Which muscle is NOT a part of the pelvic diaphragm?
Which muscle is NOT a part of the pelvic diaphragm?
Which of the following ligaments is involved in defining the greater and lesser sciatic foramen?
Which of the following ligaments is involved in defining the greater and lesser sciatic foramen?
What are the components of the pelvic diaphragm?
What are the components of the pelvic diaphragm?
Which pelvic structure is specifically defined by the formation of the median raphe?
Which pelvic structure is specifically defined by the formation of the median raphe?
How does the female bony pelvis differ from the male bony pelvis?
How does the female bony pelvis differ from the male bony pelvis?
Which bone is NOT part of the pelvic bone?
Which bone is NOT part of the pelvic bone?
What structure forms the acetabulum?
What structure forms the acetabulum?
Which of the following structures is associated with the ischium?
Which of the following structures is associated with the ischium?
What role does the iliococcygeus muscle play in pelvic anatomy?
What role does the iliococcygeus muscle play in pelvic anatomy?
Which structure is located inferior to the ischial spine?
Which structure is located inferior to the ischial spine?
Which pelvic structure is connected by the pubic symphysis?
Which pelvic structure is connected by the pubic symphysis?
What does the term 'innominate bone' refer to?
What does the term 'innominate bone' refer to?
What defines the boundary between the true pelvis and false pelvis?
What defines the boundary between the true pelvis and false pelvis?
Which of the following features is NOT associated with the ilium?
Which of the following features is NOT associated with the ilium?
Which structure is NOT part of the defining features of the linea terminalis?
Which structure is NOT part of the defining features of the linea terminalis?
What marks the transition from the abdominal cavity to the true pelvis?
What marks the transition from the abdominal cavity to the true pelvis?
Which of the following describes the pelvic outlet?
Which of the following describes the pelvic outlet?
How are gynecological conjugates measured?
How are gynecological conjugates measured?
Which structure is located inferior to the pelvic inlet?
Which structure is located inferior to the pelvic inlet?
Which features mark the boundaries of the pelvic outlet?
Which features mark the boundaries of the pelvic outlet?
What does the term 'promontory' refer to in this context?
What does the term 'promontory' refer to in this context?
What is the primary method for determining the pelvic outlet?
What is the primary method for determining the pelvic outlet?
Which statement about the female bony pelvis is true?
Which statement about the female bony pelvis is true?
What distinguishes the male bony pelvis compared to the female pelvis?
What distinguishes the male bony pelvis compared to the female pelvis?
What is the approximate subpubic angle in the female pelvis?
What is the approximate subpubic angle in the female pelvis?
Which ligament is essential for maintaining the integrity of the pelvic bones?
Which ligament is essential for maintaining the integrity of the pelvic bones?
How does the neck of the femur differ between the male and female pelvis?
How does the neck of the femur differ between the male and female pelvis?
What describes the male pelvic bones in comparison to female pelvic bones?
What describes the male pelvic bones in comparison to female pelvic bones?
Which of the following statements about the obturator membrane is correct?
Which of the following statements about the obturator membrane is correct?
What is the primary function of the tendinous arch?
What is the primary function of the tendinous arch?
Where does the obturator internus muscle insert?
Where does the obturator internus muscle insert?
What is the origin of the piriformis muscle?
What is the origin of the piriformis muscle?
Which structure helps to differentiate the true pelvis from the perineum?
Which structure helps to differentiate the true pelvis from the perineum?
How does the tendon of the obturator internus exit the perineum?
How does the tendon of the obturator internus exit the perineum?
What does the obturator internus muscle attach to on the pelvic wall?
What does the obturator internus muscle attach to on the pelvic wall?
What role does the fascia forming the pudendal canal serve?
What role does the fascia forming the pudendal canal serve?
Which muscle is located in both the true pelvis and the perineum?
Which muscle is located in both the true pelvis and the perineum?
What is the function of both the piriformis and obturator internus muscles?
What is the function of both the piriformis and obturator internus muscles?
Which muscles comprise the levator ani?
Which muscles comprise the levator ani?
Where does the pelvic diaphragm split anterior to the anal canal?
Where does the pelvic diaphragm split anterior to the anal canal?
What is formed by the fusion of the two halves of the pelvic diaphragm?
What is formed by the fusion of the two halves of the pelvic diaphragm?
What ligament suspends the anal canal to the tip of the coccyx?
What ligament suspends the anal canal to the tip of the coccyx?
Which structure aids in preventing abdominal and pelvic viscera from escaping into the perineum?
Which structure aids in preventing abdominal and pelvic viscera from escaping into the perineum?
How does the pelvic diaphragm connect posterior to the anal canal?
How does the pelvic diaphragm connect posterior to the anal canal?
Flashcards
What bones make up the bony pelvis?
What bones make up the bony pelvis?
The bony pelvis is formed by two hip bones (ilium, ischium, pubis), the sacrum, and the coccyx.
What is the linea terminalis?
What is the linea terminalis?
The linea terminalis is an imaginary line that divides the bony pelvis into two sections: the true pelvis and the false pelvis.
What is the pelvic inlet?
What is the pelvic inlet?
The pelvic inlet is the upper opening of the true pelvis, defined by the linea terminalis.
What is the pelvic outlet?
What is the pelvic outlet?
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What is the function of ligaments and membranes in the pelvis?
What is the function of ligaments and membranes in the pelvis?
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What is the pelvic diaphragm?
What is the pelvic diaphragm?
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What is the function of the puborectalis muscles?
What is the function of the puborectalis muscles?
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What is the urogenital hiatus?
What is the urogenital hiatus?
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Pelvic bone
Pelvic bone
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Bony Pelvis
Bony Pelvis
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Iliac Crest
Iliac Crest
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Anterior Superior Iliac Spine (ASIS)
Anterior Superior Iliac Spine (ASIS)
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Iliac Fossa
Iliac Fossa
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Greater Sciatic notch
Greater Sciatic notch
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Ischial Tuberosity
Ischial Tuberosity
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Lesser Sciatic Notch
Lesser Sciatic Notch
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What is the true pelvis?
What is the true pelvis?
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What is the false pelvis?
What is the false pelvis?
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What are gynecological conjugates?
What are gynecological conjugates?
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What is the diagonal conjugate?
What is the diagonal conjugate?
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What is the posterior sagittal diameter?
What is the posterior sagittal diameter?
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What is the subpubic angle?
What is the subpubic angle?
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How does the orientation of the femur differ between males and females?
How does the orientation of the femur differ between males and females?
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How does the sacral ala and promontory differ between males and females?
How does the sacral ala and promontory differ between males and females?
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How does the pelvic inlet differ between males and females?
How does the pelvic inlet differ between males and females?
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Pelvic Inlet
Pelvic Inlet
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What is the function of the superior and inferior pubic ligaments?
What is the function of the superior and inferior pubic ligaments?
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What is the obturator membrane?
What is the obturator membrane?
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Piriformis and Obturator Internus Function
Piriformis and Obturator Internus Function
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What makes up the levator ani?
What makes up the levator ani?
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What is the boundary defined by the pelvic diaphragm?
What is the boundary defined by the pelvic diaphragm?
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What forms the median raphe?
What forms the median raphe?
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What is the role of the pelvic diaphragm and urogenital diaphragm together?
What is the role of the pelvic diaphragm and urogenital diaphragm together?
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What is the obturator internus muscle?
What is the obturator internus muscle?
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What is the tendinous arch?
What is the tendinous arch?
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How does the tendinous arch affect the pelvic anatomy?
How does the tendinous arch affect the pelvic anatomy?
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What is the piriformis muscle?
What is the piriformis muscle?
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How do the piriformis and obturator internus muscles differ in their exit points?
How do the piriformis and obturator internus muscles differ in their exit points?
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Where is the obturator internus muscle located?
Where is the obturator internus muscle located?
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What is the significance of the obturator internus and piriformis muscles?
What is the significance of the obturator internus and piriformis muscles?
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How do the obturator internus and piriformis muscles contribute to hip function?
How do the obturator internus and piriformis muscles contribute to hip function?
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Study Notes
Learning Objectives
- Summarize the bones that form the pelvis
- Describe the anatomical features of the bony pelvis (linea terminalis, pelvic inlet/outlet, pelvic conjugates, orientation, gender differences, ligaments, and muscles of the pelvic wall)
- Describe the pelvic diaphragm (composition, muscles, and relationship to the urogenital diaphragm)
Session Outline
I. The Bony Pelvis
A. Pelvic Bone
- Ilium
- Ischium
- Pubis
B. Sacrum and Coccyx
II. Features of the Bony Pelvis
A. Linea Terminalis
- Regional bony features defining the linea terminalis
B. Pelvic Inlet, Outlet, and Pelvic Conjugates
- Pelvic inlet
- Pelvic outlet
- Gynecological conjugates
C. Orientation of the Pelvis
- Describes how the pelvis is positioned
D. Gender Differences in the Pelvis
- Female bony pelvis
- Male bony pelvis
III. The Pelvic Diaphragm
A. Composition of the Pelvic Diaphragm
- Relationship to the anococcygeal ligament
- Formation of the median raphe
- Formation of the urogenital hiatus
- Boundary between the true pelvis and perineum
B. Pelvic Diaphragm Muscles
- Levator ani
- Puborectalis muscles
- Attachments and definition of the anorectal flexure
- Function of the puborectalis
- Pubococcygeus muscles
- Relationship to the urogenital hiatus
- Iliococcygeus muscles
- Coccygeus muscles
C. Relationship with the Urogenital Diaphragm
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Description
Test your knowledge on the anatomy of the pelvis with this quiz. Explore the bones, ligaments, muscles, and structural features that define this vital area. Challenge yourself with questions about differences between male and female pelvises and key anatomical definitions.
