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Endo Exam 2 > Structure and Compartmentation - Pelvis and Perineum III > Flashcards

Structure and Compartmentation - Pelvis and Perineum III Flashcards

1
Q

pelvic vasculature

A

internal iliac artery
-branch from common iliac artery

divides at upper border of piriformis

  • posterior trunk
  • anterior trunk
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2
Q

posterior trunk of internal iliac

A

iliolumbar artery
lateral sacral artery
superior gluteal artery

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3
Q

iliolumbar artery

A

first branch of posterior trunk internal iliac a

lumbar branch - psoas and quadratus lumborum
iliac branch - to iliacus m.

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4
Q

lateral sacral artery

A

branch of posterior trunk internal iliac artery

2 from one trunk:

  • 1st enter first anterior sacral foramen
  • to vertebral canal and skin/muscles of dorsal sacrum
  • anastomose with superior gluteal
  • 2nd descends sacrum
  • medial to anterior foraminae
  • branches similar to first
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5
Q

superior gluteal artery

A

continuation of posterior trunk of internal iliac

leaves pelvis - greater sciatic foramen
-exits above piriformis

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6
Q

inferior gluteal artery

A

may be termination of posterior trunk internal iliac but usually terminal branch of anterior trunk

exits greater sciatic foramen below piriformis

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7
Q

anterior trunk of internal iliac artery

A

arises along lateral pelvic wall lateral to pelvic plexus

typically give rise to all pelvic visceral branches

very variable**
-rely on where they go

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8
Q

branches of anterior trunk

A 
umbilical artery
middle rectal artery
inferior rectal artery
obturator artery
internal pudendal artery
superior vesicle artery
vaginal artery (F)
inferior vesicle artery (M)
middle vesicle artery
inferior gluteal artery
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9
Q

middle sacral artery

A

arises from aorta along surface of sacrum

-small communicating branches to lateral sacral arteries

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10
Q

superior rectal artery

A

branch of inferior mesenteric artery

-to posterior wall of rectum

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11
Q

internal iliac vein

A

tributaries roughly follow arteries

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12
Q

iliolumbar vein

A

companion of lumbar branch of iliolumbar artery

formation of ascending lumbar vein in abdominal region

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13
Q

anastomotic venous connections

A

link:
visceral pelvis plexus
bony pelvic plexus
spinal venous plexus

possible routes of transmission - infections and metastatic cells

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14
Q

cruciate collateral circulation

A

ovarian artery with uterine artery

in females

important if ligate during surgery

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15
Q

innervation of pelvis

A

lumbar plexus

sacral plexus

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16
Q

lumbar plexus

A

ventral rami - T12-L5

in substances of psoas major m.

linked superiorly to T12 and L1

lumbosacral trunk - ventral rami L4,5
-contribute to lumbosacral plexus

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17
Q

sacral plexus

A

ventral rami S1,2,3
joined by lumbosacral trunk

forms within pelvis - anterior surface sacrum and lateral borders of sacrum

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18
Q

lumbosacral trunk

A

ventral rami L4,5

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19
Q

5 major nerves from lumbosacral plexus

A

anterior division:
obturator n.
tibial n. (medial and lateral plantar nn.)

posterior division:
femoral n.
common fibular n.

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20
Q

sciatic nerve

A

largest nerve to exit plexus

-bundle of tibial and common fibular nerve**

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21
Q

femoral nerve

A

posterior division of lumbar plexus

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22
Q

obturator nerve

A

anterior division of lumbar plexus

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23
Q

common fibular nerve

A

posterior division of sacral plexus

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24
Q

tibial nerve

A

anterior division of sacral plexus

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25
Q

both division of lumbar plexus

A

leaves pelvis on anterior aspect of thigh and posteriorly entering buttocks

26
Q

lumbar plexus

A

sacral and lumbar plexus

27
Q

anterior division of both plexuses

A

supply original flexor muscles

28
Q

posterior division of both plexues

A

supply original extensor muscles

29
Q

obturator nerve

A

L2-4

30
Q

iliohypogastric nerve

A

L1

31
Q

ilioinguinal nerve

A

L1

32
Q

genitofemoral nerve

A

L1-2

33
Q

lumbosacral trunk

A

L4,5

34
Q

femoral nerve

A

L2-4

35
Q

lateral femoral cutaneous nerve

A

L2-3

36
Q

accessory oburator nerve

A

L3,4

37
Q

anterior division of lumbar plexus

A 
obturator nerve
iliohypogastric nerve
ilioinguinal nerve
genitofemoral nerve
lumbosacral trunk
38
Q

posterior division of lumbar plexus

A

femoral nerve
lateral femoral cutaneous nerve
accessory obturator nerve

39
Q

anterior division of sacral plexus

A

medial and lateral plantar nerves = tibial n
nerve to quadratus femoris
nerve to obturator internus
pudendal nerve

40
Q

posterior division of sacral plexus

A 
common peroneal nerve
superior gluteal nerve
inferior gluteal nerve
nerve to piriformis
posterior femoral cutaneous nerve
41
Q

tibial nerve

A

L4-S3

42
Q

nerve to quadratus femoris

A

L4-S1

43
Q

nerve to obturator internus

A

L5-S2

44
Q

pudendal nerve

A

S2-4

45
Q

common peroneal nerve

A

L4-S2

46
Q

superior gluteal nerve

A

L4-S1

47
Q

inferior gluteal nerve

A

L5-S2

48
Q

nerve to piriformis

A

S1,2

49
Q

posterior femoral cutaneous nerve

A

S2,3

50
Q

lymph drainage

A 
internal iliac node >
external iliac nodes >
common iliac node >
lumbar node >
cisterna chyli >
thoracic ductd
51
Q

bladder lymph

A

superior and lateral surface - external iliac nodes
base - to internal iliac nodes
neck - to sacral and common iliac nodes

52
Q

rectum lymph

A

below pectinate - superficial inguinal nodes

above pectinate - parallel major arteries:

  • from rectal ampulla and superior anal canal
  • along inferior rectal artery to internal iliac nodes

from most of rectum - pararectal nodes along middle rectal artery to internal iliac nodes

from area of rectosigmoid junction - superior rectal artery to inferior mesenteric nodes

53
Q

male genitalia lymph

A

external iliac nodes
internal and external iliac nodes
sacral and common iliac nodes

54
Q

testes lymph

A

to lumbar nodes

55
Q

penis and scrotum lymph

A

to inguinal nodes

56
Q

prostate lymph

A

sacral nodes and internal iliac nodes

57
Q

ductus deferens lymph

A

drains with testes

58
Q

ovaries and uterine tube lymph

A

lumbar nodes

59
Q

uterus lymph

A

fundus - lumbar nodes
body - external iliac, internal iliac, superficial inguinal nodes
cervix - internal and external iliac nodes, sacral nodes, internal iliac and common iliac nodes

60
Q

vagina lymph

A

upper - internal and common iliac
middle and lower - internal iliac
perineal - superficial inguinal nodes

Endo Exam 2 (17 decks)

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