male repro muscles

Question 1

ischiocavernosus

Answer 1

origin- ischial tuber
insertion- proximal corpus cavernosa
function- contracts to restrict venous return from corpus cavernosum and attaches penis to ischial arch of pelvis

Question 2

bulbospongiosus

Answer 2

surrounds penile urethra, extension of urethras muscle.

function- compression of the proximal corpus spongiosum

Question 3

urethralis

Answer 3

surrounds pelvic urethra and forms part of the bladder sphincter

Question 4

retractor penis

Answer 4

origin- ventral surface of sacrum

inserts- penis at the level of the glans

Question 5

ischiourethralis

Answer 5

small transverse muscle
origin- dorsal surface of ischial tuber
inserts- forms fibrous ring at pelvic symphysis that encircles common trunk of dorsal veins of the penis
function - contracts to retract venous return via dorsal vein of the penis