Session 4B - Non-reproductive features of the perineum

Question 1

What is the acetabulum?

Answer 1

the socket of the hipbone, into which the head of the femur sits

Question 2

What is the obturator foramen?

Answer 2

the large opening created by the ischium and pubis of the pelvis, through which nerves and blood vessels pass

Question 3

Describe the axis of the pelvic cavity?

Answer 3

it is anterolateral-inferiolrly inclined

Question 4

Describe the shape of the pelvic cavity

Answer 4

conical/cylindrical

Question 5

What muscle and its fascia cover the pelvic bone facing the pelvic cavity?

Answer 5

obturator muscle and its fascia

Question 6

What 2 muscles attach to the medial surface of the greater trochanter of the femur?

Answer 6

obturator interns muscle

piriformis muscle

Question 7

Describe the levator ani

Answer 7

main muscle of the pelvic floor/diaphragm
bowl-like pari pf skeletal muscles
support the pelvic viscera

Question 8

Structurally, what is the perineal membrane?

Answer 8

inferior layer of fascia of the urogenital part of the pelvic diaphragm

Question 9

What is the ductus/vas deferens?

Answer 9

a tiny muscular tube that makes up part of the male reproductive system
carries sperm from the epididymis to the ejaculatory ducts
NOTE: there is a pair of these ducts in the males body

Question 10

What re the 2 sphincters of the urinary bladder, and what kind of muscle are they made of?

Answer 10

• smooth muscle sphincter at the neck (vesicae)

- skeletal muscle sphincter in the perineum (urethrae)

Question 11

What are 3 parts of the external anal sphincter?

Answer 11

deep
superficial
subcutaneous

Question 12

Name the layers of fat and fascia covering the kidneys

Answer 12

kidneys
renal capsule
perirenal fat
renal fascia
pararenal fat

Question 13

Give the order of drainage of the kidneys

Answer 13

renal pyramids -> minor calyces -> major calyces -> renal pelvis -> ureter