Males versus Females Pelvis' Flashcards

1
Q

What are the 2 main principal sources between male + female pelvis’?

A
  1. The female pelvis’ has to transmit a baby during childbirth leading to a widening in the pelvic inlet + outlet.
  2. Males are usually heavier + have larger muscles. Any structure that is weight-bearing will be larger in males.
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2
Q

What are 5 differences between male and female pevlis’?

A
  1. The female pubic angle is wider + more U-shaped. Males are acutely angled + straighter.
  2. Female pubic body + Superior pubic ramus are wider. Males have a larger acetabulum instead.
  3. Greater sciatic notch is wider in females.
  4. Female pelvic inlet is round. Males are more heart-shaped. Due to male sacral promontory juts further forward.
  5. Males have a larger auricular surface on the sacrum than females.
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3
Q

What is the Obstetrical Dilemma?

A
  • A hypothesis outlining how opposing evolutionary pressures resulted in a narrower pelvis to better help walking
  • But for women a wider pelvis to allow birth
  • Making them less able to walk or run compared to men.
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