O & I: Pelvic Floor (Levator Ani) Muscles Flashcards
1
Q
Origin: Puborectalis
A
Posterior pubic symphysis
2
Q
Insertion: Puborectalis
A
Posterior rectum
3
Q
Innervation: Puborectalis
A
Pudendal nerve
4
Q
Action: Puborectalis
A
Draws rectum upwards and forwards; aids anal sphincter
5
Q
Origin: Pubococcygeus
A
Superior ramus of posterior pubis
6
Q
Insertion: Pubococcygeus
A
Coccyx and sacrum
7
Q
Innervation: Pubococcygeus
A
Pudendal Nerve
8
Q
Action: Pubococcygeus
A
Elevation of pelvic floor
9
Q
Origin: Iliococcygeus
A
Ischial spine and tendonous arch
10
Q
Insertion: Iliococcygeus
A
Coccyx
11
Q
Innervation: Iliococcygeus
A
Sacral Nerves (S3,S4)
12
Q
Action: Iliococcygeus
A
Supports pelvic viscera
