Muscles of the Pelvic Floor

Question 1

What shape is the pelvis floor?

Answer 1

funnel shaped

Question 2

The pelvic floor separates the pelvic cavity from the ______

Answer 2

Perineum

Question 3

What are the two gaps in the pelvic floor?

Answer 3

Urogenital hiatus and rectal hiatus

Question 4

What is the perineal body?

Answer 4

a fibrous node between the urogenital hiatus and the anal canal, which joins the pelvic floor to the perineum

Question 5

What are the three roles of the pelvic floor muscles?

Answer 5

support viscera above, resistance to increased intra-pelvic/abdominal pressure, urinary and fecal continence

Question 6

What are the two main muscles of the pelvic floor?

Answer 6

levator ani muscles, coccygeus muscle,

Question 7

The levator ani is composed of three paired muscles called________

Answer 7

pubococcygeus, puborectalis, iliococcygeus

Question 8

Which of the muscles of the levator ani creates the anorectal angle?

Answer 8

puborectalis

Question 9

Which muscle maintains fecal continence, and relaxes during defecation?

Answer 9

puborectalis

Question 10

Which muscle has fibres that also help maintain urinary continence?

Answer 10

puborectalis

Question 11

Which of the levator ani muscles helps elevate the pelvis floor?

Answer 11

iliococcygeus