the perineum Flashcards

1
Q

perineum

A

pelvic floor and the things beneath it

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2
Q

corpus cavernosum

A

cavernous bodies on the top of the penis

erectile tissue

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3
Q

corpus spongiosum

A

spongy body

extends to the gland

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4
Q

corpus cavernosum is homologous to

A

clitoral crura and body

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5
Q

corpus spongiosum is homologous to

A

bulb of the vestibule, clitoral glans

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6
Q

perineal layers

A
  1. subcutaneous - superficial external anal sphincter
  2. external - erectile tissue muscles
  3. internal - deep external anal sphincter/urethral/vaginal sphincter
    4, transverse - levator ani and coccygeus
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7
Q

scarpas facial is continuous with

A

collies fascia

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8
Q

buck’s fascia

A

only on the penis
under collies fascia
extension of the perineal membrane

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9
Q

fascias allow for

A

containment of compartmentalisation

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10
Q

subcutaneous body wall

A

superficial external anal sphincter

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11
Q

deep perianal fascia contains

A

male erectile tissues

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12
Q

superficial sternal anal sphincter is

A

voluntary

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13
Q

space observed in the subcutaneous body wall

A

ischorectal fossa

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14
Q

external body wall, erectile muscle layer

A

bulbospongiosus, ischiocavernous, superficial transverse perineal

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15
Q

internal body wall

A

urogenital diaphragm, deep pouch muscles, deep external anal sphincter

with the female - also sphincter urethrovaginalis, compressor urethrae

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16
Q

transverse body wall

A

levator ani

pelvic floor - support viscera, maintain rectoanal angle

17
Q

levator ani is made is up of

A

puborectalis, pubococcygeus, iliococcygeus

18
Q

ischiococcygeus

A

form pelvic floor, support viscera, flexes the coccyx after defacation

19
Q

urogenital diaphragm

A

the entire 3rd muscle layer

entire structure of the deep pouch and all its contents

20
Q

deep pouch

A

fascial pouch containing the urogenital diaphragm muscles

21
Q

bulbourethral gland

A

extra contents of the male deep pouch

22
Q

superficial pouch

A

space between perineal membrane and collet fascia (skin fascia)
contains erectile muscles and tissues

23
Q

the female prostate

A

para urethral gland

24
Q

the female bulbourethral gland

A

greater vestibular gland

25
pudendal vessels run
inside the pudendal canal
26
pudendal canal
fibrous canal n the sternal obturator fascia
27
branches of the pudendal nerve
1. inferior rectal 2. perineal 3. dorsal nerve of the penis/clitoris
28
cloacal urogenita sinus develops
- separated from anus | - top: genital tubercle (body of erectile tissue)
29
formation of the external genitalia in males
genital tubercle elongates to form the phallus urethral folds close to form a penile urethra labioscrotal swells into a scrotum and accepts the descending testicles
30
external genital development iii females
tubercle does not lengthen and urethral folds do not close results in short clitoral body and labia minora open to both urethra and vagina
31
dartos muscle
smooth muscle under autonomic control