Pelvis Flashcards
1
Q
Obturator internus origin
A
Obturator membrane
2
Q
Piriformis origin
A
Anterior aspect of sacrum
3
Q
Levator ani origin
A
Pubis, tendinous arch, ischial spine
4
Q
Coccygeus origin
A
Ischial spine and sacrospinous ligament
5
Q
Obturator internus insertion
A
Exits lesser sciatic foramen, greater trochanter of femur
6
Q
Piriformis insertion
A
Exits greater sciatic foramen, greater trochanter of femur
7
Q
Levator ani insertion
A
Blend with fibers from opposite side
8
Q
Coccygeus insertion
A
Sacrum and coccyx
9
Q
Obturator internus action
A
Laterally rotates thigh
10
Q
Piriformis action
A
Laterally rotates thigh
11
Q
Levator ani action
A
Supports pelvic viscera, puborectalis provides anorectal angle
12
Q
Coccygeus action
A
Supports pelvic viscera
