Perineum

Question 1

What is the perineal body?

Answer 1

anchor point for muscles between genitals and anus

central tendon that adds strength

Question 2

What is the venous return above the pectinate line?

Answer 2

hepatic portal vein

Question 3

What is the venous return below the pectinate line?

Answer 3

internal iliac vein (systemic)

Question 4

What is the root of the penis in females?

Answer 4

clitoris

Question 5

How does the female UG triangle differ from males?

Answer 5

bulb and bulbospongiosus are split by vagina

Question 6

What is the third element that females dont have?

Answer 6

spongiosim

not in clitoris

Question 7

Is the shaft covered in muslce and bulb?

Answer 7

No

root only

Question 8

What is in the superficial pouch?

Answer 8

superficial transverse perineal muslces
crura and bulb
some neuro vasculature

vestibular (lubricating) glands in FEMALE ONLY

Question 9

What is the UG diaphragm?

Answer 9

deep transverse perineus and sphincter urethra

Cowpers glands of male are here

deep pouch

Question 10

What is the blood supply of the perineum?

Answer 10

internal pudental artery

artery and nerve give branches to rectum

Question 11

What does the pudental nerve supply?

Answer 11

perineum and splits into perineal, inferior rectal, amd doral nerves of penis (clit)

artery supplies rectum too

Question 12

What are the three differenes between females and males?

Answer 12

1 splitting of bulb to form vagina
2 greater vestulbar glands are in the superficial pouch in females
3 corpus spongiosum does not contribute to formation of clit

Question 13

Where is the greater vestibular glands in males?

Answer 13

deep pouch

Question 14

Where is the inferior rectal nerves?

Answer 14

go through canal over opturator internus muscle

Question 15

What is straddle injury?

Answer 15

due to tear in spongey urethra that allows blood and urine to travel into the scrotum and up the abdominal wall as defined by boundaries of colles and scarpas fascia- more common in males because longer

Question 16

What do the crus of the penis become?

Answer 16

corpora cavernosa x2

Question 17

What does the bulb of penis become?

Answer 17

1 corporus spongiosum

erectile tissue

Question 18

Muscles of male perineum?

Answer 18

bulbospongiosome covers bulb
ischiocavernosus covers corpora cavernosa
superficial transverse perinus

Question 19

where does pudental nerve go?

Answer 19

1 come off S2,3,4'
2 go out greater sciatic foramen
3 curve around sacrospinus ligament
4 reenter at lesser sciatis foramen 
5 innervates perineum and rectal

Question 20

Where does the femur fit?

Answer 20

acetebulum