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Gross III Final > Female Urogenital Triangle > Flashcards

Female Urogenital Triangle Flashcards

1
Q

What are the functions of the vulva/pudendum?

A
  • erectile/sensory tissue for sex
  • direct the flow of urine
  • prevents foreign entry into urogenital tract
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2
Q

What is the mons pubis?

A

rounded, fatty prominence ant. to: pubic symphysis, superior pubic rami and pubic tubercles

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3
Q

What is the labia majora?

A
  • prominent raised folds of skin on either side of pudendal cleft
  • contains: glandular and hairy external surface; smooth, pink hairless internal surface
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4
Q

What is the labia majora homologous to in males?

A

two halves of scrotal sac

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5
Q

What ligament terminates in the labia majora?

A

round lig. of uterus

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6
Q

What surrounds the vestibule of vagina?

A

labia minora

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7
Q

What is the labia minora?

A

-folds of fat-free, hairless skin enclosed in pudendal cleft by labia majora

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8
Q

How does the labia minora connect posteriorly in young women and virgins?

A

frenulum of labia minora

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9
Q

What is the homologue of the labia minora in males?

A

the skin that covers body of penis in males

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10
Q

When the labia minora meets anteriorly, what structure does it form?

A

prepuce of clitoris

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11
Q

What makes up the root of the clitoris?

A

2 crura located along the internal surface of ischial rami

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12
Q

What surrounds the female crus?

A

ischiocavernosus mm.

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13
Q

Each female crus is continuous with what structure in the body of clitoris?

A

Corpus cavernosum

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14
Q

Where does the bulbospongiosus m. travel?

A

originates at perineal body and inserts onto clitoris, covering bulb of vestibule on either side of vaginal orifice

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15
Q

What is the body of the clitoris composed of?

A

2 corpora cavernosa

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16
Q

What is the function of the glans clitoris?

A

organ of sexual arousal

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17
Q

What is the vestibule of vagina?

A

space btw labia minora were urethra and vagina open externally

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18
Q

What is the hymen?

A

thin fold of mucous membrane covering vaginal orifice, may cover vaginal orifice completely but perforates at puberty to allow for menstrual flow

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19
Q

What is the bulb of vestibule?

A

paired masses of elongated erectile tissue deep to labia minora

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20
Q

what is the bulb of the vestibule covered by and continuous with?

A

bulbospongiosus m. and glans clitoris

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21
Q

what is the homologue to bulb vestibule in males?

A

bulb of penis and corpus spongiosum

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22
Q

What are vestibular glands?

A

round/oval glands located on each side of vestibule posterolateral to vagina

23
Q

What two arteries supply the vulva?

A

external and internal pudendal aa.

24
Q

What does the external pudendal artery supply?

A

skin and superficial fascia of vulva

25
Q

Does the external pudendal artery have branches?

A

Yes, deep and superficial arteries that branch from femoral artery

26
Q

What does the internal pudendal artery supply?

A

via deep a. of clitoris - supplies erectile tissue in clitoris

27
Q

what is the venous drainage of the vulva?

A

internal pudendal v drain to internal iliac v

28
Q

The innervation of the vulva somatically by _______, __________ and __________

A

ilioinguinal, genitofemoral and pudendal n

29
Q

What nerve is formed by ilioinguinal in female?

A

anterior labial n

30
Q

What does genitofemoral n innervate on a female?

A

anterolateral perineum

31
Q

What does the pudendal nerve terminate in a female?

A

posterior labial nerve (from superficial perineal n)

32
Q

Innervation of vulva parasympathetically via __________?

A

cavernous nerve from uterovaginal nerve plexus

33
Q

What is the result of parasympathetic innervation to the vulva?

A

increases vaginal secretion and erection of clitoris

34
Q

A pudendal nerve block during childbirth would be injected where?

A

where pudendal nerve crosses sacrospinal lig, near its attachement to ischial spine

35
Q

What is another block the pudendal block may be coupled with?

A

ilioinguinal nerve block

36
Q

ilioinguinal nerve block abolishes what sensations from what area?

A

sensations from anterior part of perineum

37
Q

What are the 4 main perineal fascias and pouches?

A
  1. superficial perineal fascia
  2. deep perineal fascia
  3. superficial perineal pouch
  4. deep perineal pouch
38
Q

The fatty superficial layer of superficial perineal fascia is continous with what fascia?

A

Camper’s fascia

39
Q

In females the fatty superficial layer of superficial perineal fascia extends into?

A

labia majora and over mons pubis

40
Q

in males the fatty superficial layer of superficial perineal fascia is ?

A

reduced, replaced by smooth muscle in penis/scrotum

41
Q

What is another name for the membranous deep layer of the superficial perineal fascia?

A

Colles’ fascia - continuous with scarpa’s fascia

42
Q

Colles fascia attaches posteriorly to ?

A

perineal body and perineal membrane

43
Q

Colles fascia attaches laterally to ?

A

fascia lata of thigh

44
Q

Colles fascia is continuous with?

A

dartos fascia of penis and scrotum

45
Q

What does the deep perineal fascia invest?

A

ischiocavernosus, bulbospongiosus and superficial transverse perineal muscles

46
Q

Where does the deep perineal fascia attach?

A

laterally to ischiopubic rami

47
Q

Deep perineal fascia fuses anterior with?

A

suspensory lig or either penis or clitoris

48
Q

What is the deep perineal fascia continuous with?

A

deep fascia of anterolateral abdominal wall

49
Q

the superficial perineal pouch is the potential space between?

A

colles fascia and perineal membrane

50
Q

What does superficial perineal pouch contain in males?

A
  • crura and bulb of penis, ischiocavernosus, bulbospongiosus
  • proximal part of spongy urethra
  • superficial transverse perineal m
  • deep perineal branches of internal pudendal AV and pudendal N
51
Q

What does superficial perineal pouch contain in females?

A
  • crura of clitoris and ischiocavernosus
  • bulb of vestibule and bulbospongiousus
  • greater vestibular glands
  • superficial transverse perineal m
  • deep perineal branches of internal pudendal AV and pudendal N
52
Q

Where is the deep perineal pouch?

A

located above perineal membrane and open superior to ischioanal fossae

53
Q

What is in the deep perineal pouch?

A
  • membranous urethra and bulbourethral glands (males)
  • proximal part of urethra (females)
  • external urethral sphincter - both sexes
  • deep transverse perineal m - both sexes
54
Q

What innervates the external urethral sphincter m?

A

dorsal nerve of penis/clitoris- branch of pudendal

Gross III Final (15 decks)

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