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Fall-Anatomy Year 1 > Inguinal Region/Spermatic Cord > Flashcards

Inguinal Region/Spermatic Cord Flashcards

1
Q

layers over testes

A
  1. superficial/dartos fascia
  2. external spermatic fascia
  3. cremaster muscle and fascia
  4. internal spermatic fascia
  5. parietal layer tunica vaginalis
  6. epididymis
  7. testis covered by visceral layer
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2
Q

inguinal ligament

A

made from aponeurosis of external oblique

ASIS to pubic tubercule

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3
Q

conjoint tendon

A

from aponeuroses of internal oblique and TA
attaches to linguinal

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4
Q

inguinal canal

A

passageway for spermatic cord and round ligament in abdominal wall

floor of canal is ligament

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5
Q

order of testes passage

A

transversalis fascia
transversus abdominus (TA)
internal oblique
external oblique

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6
Q

arches

A

under the 3 muscles:
TA
internal oblique
external oblique

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7
Q

rings

A

deep: in transversalis fascia ENTER canal
superficial: external oblique EXIT to scrotum

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8
Q

rings

location

A

deep: 1/2 way b/t ASIS and pubic tubercule
superficial: medial to pubic tubercule

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9
Q

transversalis fascia

becomes

A

deep ring
internal spermatic fascia (deepest of the 4 fascia layers)

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10
Q

transversus abdominis

becomes

A

nothing
just arches over canal to conjoint tendon

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11
Q

internal oblique

becomes

A

cremaster muscle and fascia (3rd layer of fascia)

cremaster raises testes based on temp

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12
Q

external oblique

becomes

A

external spermatic fascia (2nd layer)
superficial ring

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13
Q

arterial supply

A

testicular arteries
off aorta

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14
Q

venous return

A

pampiniform plexus
right drains into IVC
left drains into left renal canal

cremaster vessels from inferior epigastric vasculature too?

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15
Q

anterior cutaneous branch iliohypogastric

A

skin of canal

L1

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16
Q

genital branch genitofemoral

A

cremaster muscle

L1-2

17
Q

anterior scrotal branch iliolinguinal

A

inside canal?

L1

18
Q

spermatic cord contents

A

vas deferens (+ art and vein)
genital branch-genitofemoral
external and internal spermatic fascia
cremaster muscle/art/vein
vestige processus vaginalis, tunica vaginalis
testicular plexus
testicular artery
testicular vein/pampiniform plexus

19
Q

muscles

inguinal region

A

pyramidalis
cremaster
dartos

20
Q

pyramidalis

A

tenses linea alba
subcostal T12

not important

21
Q

dartos muscle

A

shrivels testes when cold to hold heat

from scarpa’s fasica

22
Q

gubernaculum

A

ligamentous primordia attaches developing testis/ovary and scrotal/labial folds

marks site of future inguinal canal

23
Q

inguinal canal formation

A

7th week- parietal peritoneum projects out into processus vaginalis to make pocket thru body wall
9th month- pocket/procesus vaginalis seals

next to gubernaculum

24
Q

peritoneum

becomes

A

tunica vaginalis

25
Q

camper’s fascia

becomes

A

nothing in spermatic cord

26
Q

layers in labia majora

A

external fascia
cremasteric muscle and fascia
internal fascia
round ligament

labia major same as scrotum
round lig from gubernaculum

27
Q

inguinal canal in females

formation

A

upper gubernaculum > ovarian ligament
lower gubernaculumm > round ligament
8th week start > 15th week end

28
Q

hernia

A

protrusion of tissue or organ thru weakness or opening in layers normally contained in

29
Q

hernia

causes

A

erect posture
inc intra-ab pressure (constipation, birth, coughing)
processus vaginalis not sealing
muscular deficiency
tissue abnormality

30
Q

common hernias

A

direct inguinal
indirect inguinal
femoral

31
Q

direct hernias

A

thru weaking in hasselbach triange
thru body wall
parallel to cord never within

unilateral bc acquired somehow

32
Q

hasselbach triangle borders

A

inferior epigastric superior
rectus abdominus medial
inguinal ligament lateral/inferior

33
Q

indirect hernia

congenital

A

thru deep ring
within cord
bilateral presentation

34
Q

femoral hernia

A

thru femoral ring
more common in older women

35
Q

hydrocele

clinical correlate

A

build up of fluid
can go away on it’s own
less dangerous
can be associated w/ hernias

36
Q

hematocele

clinical correlate

A

filled with blood
more dangerous

37
Q

spermatocele

clinical correlate

A

epididymis cyst
build up of sperm and assoc fluids
feels hard so mistaken for cancer
common

Fall-Anatomy Year 1 (17 decks)

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