Obturator internus exits the pelvis via which foramen?

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Multiple Choice

Obturator internus exits the pelvis via which foramen?

Explanation:
The obturator internus exits the pelvis through the lesser sciatic foramen. Its tendon leaves the pelvic cavity via this opening, then curves around the ischial spine to reach and insert on the femur. The greater sciatic foramen handles other structures exiting the pelvis, while the obturator canal transmits the obturator nerve and vessels, not the muscle itself. The pelvic brim is a boundary, not a foramen.

The obturator internus exits the pelvis through the lesser sciatic foramen. Its tendon leaves the pelvic cavity via this opening, then curves around the ischial spine to reach and insert on the femur. The greater sciatic foramen handles other structures exiting the pelvis, while the obturator canal transmits the obturator nerve and vessels, not the muscle itself. The pelvic brim is a boundary, not a foramen.

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