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GI > abdominal aorta and branches > Flashcards

abdominal aorta and branches Flashcards

1
Q

arteries supplying GI structures are single or double?

A

single

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2
Q

arteries supplying GI structures branch anteriorly of superiorly?

A

anteriorly

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3
Q

single, anteriorly branched artery

supplies GI structure or non-GI structure?

A

GI structure

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4
Q

artery suppling non-GI: paired or single?

A

paired

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5
Q

artery suppling non-GI: branch anteriorly, laterally and/or posteriorly?

A

laterally and posteriorly

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6
Q

what are the watershed regions of the colon?

A
  • splenic flexure
  • rectosigmoid colon
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7
Q

which arteries supply the splenic flexure?

A

SMA and IMA

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8
Q

which arteries supply the rectosigmoid colon?

A

last sigmoid branch from the IMA
superior rectal artery

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9
Q

SMA is short for?

A

superior mesenteric artery

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10
Q

IMA is short for?

A

inferior mesenteric artery

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11
Q

celiac artery supplies what?

A

esophagus, stomach, liver
duodenum till ampulla of Vater

(foregut)

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12
Q

SMA supplies what?

A

lower duodenum (after ampulla of Vater), jejunum, ileum, proximal 2/3 of colon

(midgut)

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13
Q

IMA supplies what?

A

distal 1/3 colon, sigmoid, rectum, anal canal till pectinate line

(hindgut)

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14
Q

what is the nutcracker syndrome?

A

compression of left renal vein between SMA and aorta

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15
Q

compression of left renal vein between SMA and aorta

what is this called?

A

nutcracker syndrome

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16
Q

nutcracker syndrome: symptoms?

A

abdominal/flank pain, gross hematuria, left sided varicocele

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17
Q

what is varicocele ?

A

enlarged veins scrotum

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18
Q

what causes gross hematuria in nutcracker syndrome?

A

rupture of thin walled renal varicosities

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19
Q

what are varicosities?

A

twisted, enlarged veins

20
Q

twisted, enlarged veins

what are these called?

A

varicosities

21
Q

what are the 3 major anterior arteries branching of the abdominal aorta?

A

celiac, SMA, IMA

22
Q

lateral (important) branches of abdominal aorta from top down?

A

inferior phrenic
middle suprarenal
renal
gonadal

23
Q

inferior phrenic branch supplies what?

24
Q

middle suprarenal branch supplies what?

A

adrenal gland

25
Q

superior suprarenal

branch of what?

A

inferior phrenic

26
Q

inferior phrenic branches into what?

A

superior suprarenal

27
Q

inferior suprarenal

branch of what?

28
Q

renal artery branches into what?

A

inferior suprarenal

29
Q

vertebra level: celiac?

30
Q

vertebra level: SMA?

31
Q

vertebra level: IMA?

32
Q

vertebra level: inferior phrenic?

33
Q

vertebra level: middle suprarenal?

34
Q

vertebra level: renal?

A

between L1 and L2

35
Q

vertebra level: gonadal?

36
Q

vertebra level: biforcation?

A

L4

(biFOURcation)

37
Q

what does the biforcation of the abdominal aorta split into?

A

left and right common iliac artery

38
Q

what do the common iliac arteries split into?

A

external and internal iliac arteries

39
Q

what artery splits of the middle of the bifurcation of the abdominal aorta?

A

median sacral artery

40
Q

SMA syndrome: what is it?

A

SMA and aorta compress duodenum

41
Q

which part of the duodenum gets compressed in SMA syndrome?

A

transverse (third) portion

42
Q

what kind of symptoms SMA syndrome?

A

intermittent intestinal obstruction symptoms (abdominal pain, vomiting, abdominal distension)

mostly postprandial pain

43
Q

which organ is obstructed in SMA syndrome?

44
Q

SMA and aorta compress duodenum

what is this?

A

SMA syndrome

45
Q

among which conditions does SMA syndrome usually occur?

A

diminished mesenteric fat
e.g. malnutrition

GI (14 decks)

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