pelvic floor

Question 1

groups of muscles

Answer 1

• pelvic diaphragm
• deep perineal puch
• superficial perineal puch

Question 2

pelvic diaphragm muscle group

Answer 2

• puborectalis
• puboccocygenous
• iliococcygeus

Question 3

deep perineal puch

Answer 3

• external urethral sphincter
• deep transverse perineal muscle
• sphincter urethrovaginalis (women only)
• compressor urethrae (women only)

Question 4

superficial perineal puch

Answer 4

• ischiocavernosus
• bulbospongiosus
• superficial transverse of the perineum

Question 5

name, origin, insertion, action, layer

Answer 5

pubococcygeus
o: body of pubis
i: coccyx
a: supports pelvis
pelvic diaphragm - levator ani group

Question 6

name, origin, insertion, action, layer

Answer 6

puborectalis
o: body of pubis
i: forms a sling around the anorectal junction
a: maintains the anorectal angle for fecal continence
pelvic diaphragm - levator ani group

Question 7

name, layer

Answer 7

iliococcygeus
pelvic diaphragm - levator ani group

Question 8

name, action, layer

Answer 8

coccygeus
a: pulls coccyx forward after defecation
pelvic diaphragm

Question 9

name, origin, insertion, action, layer

Answer 9

external urethral sphincter
o: pubis
i: encircles the urethra
a: compresses the urethra to maintain urinary continences and relaxes during micturition
deep perineal puch

Question 10

name, origin, insertion, action, layer

Answer 10

deep transverse perineal
o: ischial ramus
i: perineal body
a: supports pelvic organs and stabilized the perineal body
deep perineal puch

Question 11

name, in which gender, origin, insertion, action, layer

Answer 11

sphincter urethrovaginalis
(in women only)
o: perineal body
i: passes forward lateral to the vagina to blend with partner on other side anterior to the urethra
a: helps closing the vagina
deep perineal pouch

Question 12

name, origin, insertion, action, layer

Answer 12

ischiociocavernosus
o: ischial tuberosity and ramus
i: crus of penis or clitoris
a: maintains erection by compressing veins
superficial perineal pouch

Question 13

name, origin, insertion, action, layer

Answer 13

bulbospongiousus
o: male/female: perineal body
i: male/female: perineal memrbane
a: male: assists in erection, expels remaining urine or semen, female: erection of the clitoris
superficial perineal pouch

Question 14

name, origin, insertion, action, layer

Answer 14

superficial transverse perineum
o: ramus, ischial tuberosity
i: perineal body
a: stabilizes the perineal body
superficial perineal pouch