Unit 3 - Thorax, Abdomen, Pelvis, and Perineum: Muscles of the Pelvic Diaphragm (Ex. III)

Question 1

levator ani

Answer 1

common I: anococcygeal ligament; coccyx
Inn: direct branches of S plexus (S4); I anal n.
A: supports pelvic viscera

Question 2

coccygeus

Answer 2

O: I end of sacrum
I: ischial spine
Inn: direct branches from S plexus (S4-S5)
A: supports pelvic viscera; flexes coccyx