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U2: Bony Pelvis
Question | Answer |
---|---|
Bony pelvis | 2 hip bones + sacrum + coccyx; divided into false/greater pelvis and true/lesser pelvis separated by the pelvic brim |
False/greater pelvis | that portion of the bony pelvis that’s located superior to the pelvic brim and true/lesser pelvis, and between (medial to) the flared portions of the two ilia of the hip bones. |
True/lesser pelvis | portion of the bony pelvis that’s located inferior to the pelvic brim, inferior to the false/greater pelvis, and inferior to the flared portions of the ilia. |
Pelvic structure and childbearing | superior opening is pelvic inlet; inferior opening is pelvic outlet. Bone protrusions can cause delivery probs – sacral promontory, coccyx, ischial spines. |