pelvic muscles actions

Question 1

female ischiocavernosus

Answer 1

• compresses crura and corpus cavernous to push blood from root into body of clitoris during an erection
• compresses veins of clitoris to prevent venous outflow of blood from erectile tissue during an erection

Question 2

puborectalis

Answer 2

• helps to maintain fecal continence

Question 3

female bulbospongiosus

Answer 3

• compresses bulbs of vestibule to constrict the vaginal vestibule
• compresses veins of bulbs to prevent venous outflow of blood from erectile tissue during an erection

Question 4

superficial transverse perineal

Answer 4

• stabilizes perineal body

Question 5

male ischiocavernosus

Answer 5

• compresses crura and corpus cavernous to push blood from root into body of penis during an erection
• compresses veins of penis to prevent venous outflow of blood from erectile tissue during an erection

Question 6

pubococygeus

Answer 6

• support pelvic viscera

- resist increases in intra-abdominal pressure

Question 7

coccygeus

Answer 7

• support pelvic viscera

- resist increases in intra-abdominal pressure

Question 8

iliococcygeus muscle

Answer 8

• support pelvic viscera

- resist increases in intra-abdominal pressure

Question 9

male bulbospongiosus

Answer 9

• compress bulb of penis and corpus spongiosum to aid emptying of urine or semen from spongy urethra
• compress bulb and corpus spongiosum to push blood from root into body of penis during an erection
• compresses veins of penis to prevent venous outflow of blood from erectile tissue during an erection