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Year 2 - Semester 2 ANAT 316 > Lecture 22: Perineum > Flashcards

Lecture 22: Perineum Flashcards

1
Q

superficial perineum

A

inferior, closer to the skin

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1
Q

the perineum

A

lies inferior to the pelvic floor, between lower limbs

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2
Q

deep perineum

A

superior, closer to pelvic

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3
Q

pelvic floor/ roof of perineum

A

formed by:
-levator ani
-coccygeus
-obturator internus
-piriformis

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4
Q

bones making up the border of the perineum

A

-ischiopubic ramus
-pubis symphysis
-ischial tuberosity
-coccyx/saccrum

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5
Q

triangles of the perineum

A

-urogenetial
-anal

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6
Q

urogenetial triangle

A

-anterior portion of perineum

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7
Q

urogenetial triangle is bounded by

A

-pubic symphysis
-ischial tuberosities

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8
Q

Anal triangle

A

-posterior portion of the perineum

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9
Q

anal triangle is bounded by

A

-coccyx
-ischial tiberosities

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10
Q

scrotum contains

A

-testes
-epididymis
-external spermatic cord

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11
Q

Body of penis is made up of

A

-glans
-corpus cavernosum
-corpus spongiosum

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12
Q

Glans

A

-extension of corpus spongosium

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13
Q

Corpus Cavernosum

A

-pair of erectile tissues, extension of crus

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14
Q

corpus spongiosum

A

-extension of bulb into the body of the penis

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15
Q

root of penis

A

crus & Bulb

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16
Q

crus

A

2 legs that surround bulb

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17
Q

bulb

A

single erectile cylinder

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18
Q

deep penile artery

A

penis contains 2 (one in each corpus cavernosum)

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19
Q

which part of the penis does penile urethra travel through

A

corpus spongiosum

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20
Q

names of urethra in males

A
  1. prostatic urethra
  2. Membranous urethra
  3. Spongy (penile) urethra
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21
Q

where does urethra exit

A

external urethral orifice

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22
Q

Pudenal cleft

A

space between labia majora and minora

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23
Q

borders of the vestibule

A

anterior - clitoris
posterior - Fourchette
lateral - labia minora

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24
mons pubis
fatty tissue superior to vagina for coushin and covering
25
Labia Majora
outer lip for protection
26
Labia Minora
inner lip for protection and keeping lubrications in the vagina
27
vaginal orifice
opening of the vagina.
28
bulb of vestibule
part of the clitoris where blood accumulates during arousal
29
what is inferior ot the bulb of vestibule
greater vestibular glands
30
root of erectile tissue in women
-crus of clitoris -greater vestibular glands -bulb of vestibule
31
3 female muscles surrounding urethrain females
1. External urethral sphincter 2. Urethrovaginal sphincter 3. compressor urethrae
32
external urethral sphincter
surrounds entire urethra
33
urethrovaginal sphincter
surrounds urethra and vagina
34
compressor urethrae
surrounds anterior urethra
35
urogenital triangle structures superficial to deep
1. skin 2. Perineal fascia 3. Superficial perineal pouch 4. Perineal membrane 5. Deep perineal pouch 6. Pelvic floor
36
deep perineal pouch
-underneath pelvic floor and above perineal membrane -lies superior to perineal membrane -forms the ext. urethral sphincter
37
deep perineal pouch for males
-deep transverse perineal muscle -ext. urethral sphincter (surrounds membranous urethra for voluntary control)
38
Deep perineal pouch for females
same as males but also with: -urethrovaginal sphincter -cmpressor urethrae
39
Superficial perineal pouch
-between perineal membrane and deep perineal fascia -lies inferior to the perineal mambrane
40
superior limit of superficial perineal pouch
perineal membrane
41
inferior limit of superficial perineal pouch
colles' fasica
42
contents of superficial perineal pouch for males
-bulbospongiosis -ischiocavernosus -superficical transverse perineal muscle
43
bulbospongiosus males
-compresses bulb of penis during erection -at root of penis
44
ischiocavernosus males
-compresses crus of penis during erection -paired
45
contents of superficial perineal pouch for females
-bulbospongiosus -ischiocavernosus -siperficial transverse perineal muscle
46
Bulbospongiosus females
-compresses bulb of clitoris during an orgasam
47
Ischiocavernosus females
-compresses crus of cliitoris during an orgasam
48
Perineal fascia; superficial layer
continuous with Campers fascia of anterior abdominal wall
49
Perineal fascia: deep layer
-continuous with scarpas fascial of the anterior abdominal wall -colles fascia
50
perineal body
convergence of: -bulbospongiosus -superficial/deep perineal muscles -ext. anal sphincter -pelvic floor msucles
51
anal triangle
-posterior portion of perineum -bounded by : ischial tuberosities & coccyx -NO perineal membrane -1 layer
52
contents of anal triangle
-anal aperature -ext. anal sphincter -ischiorectal fossa -pudendal canal
53
ischiorectal fossa borders
lateral: obturator internus superior: levator ani medial: ext. anal sphincter inferior: perineal fascia
54
Pudendal canal
-pudendal nerve -int. pudendal artery -int .pudendal vein
55
Anal canal is made up of
-rectal ampulla -> anal canal
56
what surrounds and controls anal canal
external and internal anal sphincters *external control internal
57
external anal sphincter
voluntary; compresses to keep sphincter shut
58
internal anal sphincter
involuntary; relaxed during normal defecation
59
where does abdominal aorta bifurcate
L4
60
path of BS to lower limb
abdominal aorta -> common iliac artert -> ext. iliac artery gives off internal iliac artery which gives off int. pudendal artery
61
Bs to perineum
internal pudendal artery
62
BS to rectum
IMA -> Superior rectal artery Int. ilaic artery -> middle & inferior rectal arteries

Year 2 - Semester 2 ANAT 316 (21 decks)

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