Unit 5 - Lower Limb: Muscles of the Perineum (Ex. IV) Flashcards Preview

Gross Anatomy '15 Ex. IV > Unit 5 - Lower Limb: Muscles of the Perineum (Ex. IV) > Flashcards

Flashcards in Unit 5 - Lower Limb: Muscles of the Perineum (Ex. IV) Deck (6)
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1
Q

superficial transverse perineal

A

O: ischial ramus
I: perineal body
Inn: pudendal n. (S2-S4)
A: holds pelvic organs in place; closes urethra

2
Q

external anal sphincter

A
O: perineal body
I: anococcygeal ligament
*encircles anus and runs P from perineal body to anococcygeal ligament*
Inn: pudendal n. (S2-S4)
A: closes anus
3
Q

external urethral sphincter

A

O/I: encircles urethra (division of deep transverse perineal
Inn: pudendal n. (S2-S4)
A: closes urethra

4
Q

bulbospongiosus

A

O: perineal body
I: clitoris (females) or penile raphe (males)
runs A from perineal body to clitoris or penile raphe
Inn: pudendal n. (S2-S4)
A: females - compresses greater vestibular gland; males - assists in erection

5
Q

ischiocavernosus

A

O: ischial ramus
I: crus of clitoris or penis
Inn: pudendal n. (S2-S4)
A: maintains erection by squeezing blood into corpus cavernosum of clitoris or penis

6
Q

deep transverse perineal

A

O: I pubic ramus; ischial ramus
I: wall of vagina or prostate; perineal body
Inn: pudendal n. (S2-S4)
A: holds pelvic organs in place

Decks in Gross Anatomy '15 Ex. IV Class (52):