Pelvis Flashcards Preview

Anatomy Muscle Tables > Pelvis > Flashcards

Flashcards in Pelvis Deck (16):
1

Obturator internus origin

Obturator membrane

2

Piriformis origin

Anterior aspect of sacrum

3

Levator ani origin

Pubis, tendinous arch, ischial spine

4

Coccygeus origin

Ischial spine and sacrospinous ligament

5

Obturator internus insertion

Exits lesser sciatic foramen, greater trochanter of femur

6

Piriformis insertion

Exits greater sciatic foramen, greater trochanter of femur

7

Levator ani insertion

Blend with fibers from opposite side

8

Coccygeus insertion

Sacrum and coccyx

9

Obturator internus innervation

Nerve to obturator internus (sacral plexus)

10

Piriformis innervation

Nerve to piriformis (sacral plexus)

11

Levator ani innervation

Nerve to levator ani (sacral plexus)

12

Coccygeus innervation

Nerve to coccygeus (sacral plexus)

13

Obturator internus action

Laterally rotates thigh

14

Piriformis action

Laterally rotates thigh

15

Levator ani action

Supports pelvic viscera, puborectalis provides anorectal angle

16

Coccygeus action

Supports pelvic viscera