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MCQ – 90484

Question

A.

Mid pelvis

B.

Pelvic inlet

C.

Pelvic outlet

D.

None

Show Answer

Correct Answer � A

Explanation

Mid Pelvis (True/Lesser Pelvis):
– Boundaries:
– Posterior: Sacrum & coccyx
– Anterior: Pubic symphysis
– Lateral: From pelvic brim to sidewalls
– Extension:
– Vertically: Sacral promontory → lower pubic symphysis
– Horizontally: Between pelvic sidewalls

Pelvic Inlet (Superior Pelvic Aperture):
– Boundaries:
– Posterior: Sacral promontory
– Anterior: Upper pubic symphysis
– Lateral: Iliopectineal line
– Extension:
– Forms superior opening; heart/oval shape

Pelvic Outlet (Inferior Pelvic Aperture):
– Boundaries:
– Posterior: Tip of coccyx
– Anterior: Lower pubic symphysis
– Lateral: Ischial tuberosities
– Extension:
– Forms inferior opening; diamond/oval shape

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