END 1 Lab 3: Female Pelvis and Genitalia

Female Pelvis and Genitalia: Module 1: Page 3 of 7

	Add the pudendal nerve and trace its path from its origin at the sacrum (S2-S4 of the sacral plexus) to the pelvic diaphragm. Then, rotate the pelvis in order to visualize both the nerve's origin and its end in the perineum.

	Through what foramen does the pudendal nerve pass to reach the perineum?
The lessor sciatic foramen.

	What are the three terminal branches of the pudendal nerve?
Inferior rectal nerve - supplies the external anal sphincter and the skin near the anus. Perineal nerve - innervates the perineal muscles and the skin of the posterior scrotum or labia. Dorsal nerve of the clitoris - provides sensory innervation to the clitoris or penis.

	Where would you place the needle for a pudendal nerve block (for pain control)?
TThe needle is typically inserted medial to the ischial spine, often using a transvaginal or transperineal approach. This targets the pudendal nerve as it wraps around the ischial spine before entering the pudendal canal. Rotate the cadaver so you can visualize this anatomy.