Lecture 38: Pelvis and Perineum III

Question 1

perineum

Answer 1

caudal pelvis wall
closes gap between floor of pelvis and pelvic cavity

Question 2

perineal region

Answer 2

perineum + external genitalia

Question 3

perineal region in cats also includes

Answer 3

testes and penis

Question 4

anal canal

Answer 4

terminal region of rectum

Question 5

anus: definition and components

Answer 5

caudal opening of anal canal
zona cutanea, zona hemorrhagica and sphincters that close them

Question 6

zona cutanea: epithelium

Answer 6

stratified squamous keratinized

Question 7

zona hemorrhagica epithelium

Answer 7

stratified squamous non keratinized

Question 8

zona columnaris epithelium

Answer 8

simple columnar epithelium

Question 9

3 regions of anal canal

Answer 9

zona cutanea
zona hemorrhagica
zona columnaris

Question 10

2 sphincters within anus and anal canal

Answer 10

external anal
internal anal

Question 11

2 structures within female perineal region

Answer 11

vulva
vaginal vestibule

Question 12

lymphatic drainage of pelvic viscera

Answer 12

starts at anorectal node –> drains to internal iliac and sacral nodes

Question 13

innervation to perineum

Answer 13

pudendal
caudal rectal

Question 14

blood supply to perineum

Answer 14

caudal rectal
ventral perineal
artery of clitoris/artery of penis