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zAnatomy Block II > Abdominal Vasculature > Flashcards

Abdominal Vasculature Flashcards

1
Q

3 branches of aorta travel through what?

A

mesentery

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2
Q

3 branches of celiac trunk

A

stump right under diaphragm

  1. common hepatic (R twd liver)
  2. splenic (L twd spleen)
  3. L gastric (around lesser curvature)
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3
Q

branches of L gastric

A

no major branches

some small branches to lower esophagus

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4
Q

branches of common hepatic 3

A
  1. right gastric (R half of lesser curvature)
  2. proper hepatic –> left hepatic (L lobe) & right hepatic (R lobe) –> cystic
  3. gastroduodenal –> R gastroepiploic (to R half of greater curvature) & superior pancreaticoduodenal (to panc and duo)
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5
Q

anastomoses of R/L gastric arteries

A

L gastric from celiac trunk
R gastric either from common/proper hepatic
along lesser curvature

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6
Q

portal triad

A
  1. common bile duct (common hepatic duct + cystic duct) to duodenum
  2. proper hepatic artery
  3. hepatic portal vein

@ hilus of liver

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7
Q

branches of gastroduodenal

A

runs along greater omentum
R gastroepiploic
superior pancreaticduodenal
supplies pancreas, duodenum, stomach

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8
Q

splenic artery

A 
curly/coiled
left gastroepiploic
short gastric arteries (stomach)
segmental branches (spleen)
pancreatic branches (direct to pancreas)
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9
Q

does stomach receive blood from all three branches of celiac trunk? what are they?

A

yes
short gastric (from splenic)
lesser: L/R gastric
greater: L gastroepi (from splenic), R gastroepi (from gastroduodenal/common hepatic

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10
Q

vessels on lesser curvature

A

L/R gastric (from common/proper hepatic)

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11
Q

vessels on greater curvature

A 
L gastroepi (from splenic)
R gastroepi (from gastroduodenal/common hep)
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12
Q

superior mesenteric (4 right-side branches, 1 L side branch)

A

runs over L renal vein

inferior pancreaticoduodenal (off of R side to pancreas and duodenum)
3 colic arteries (middle, right, iliocolic)

L side: intestinal artery branches

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13
Q

loops off of intestinal arteries aka? then become?

A

intestinal arteries –> arcades –> vasa recta

*if one of these blocked that section of gut dies

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14
Q

3 colic arteries

A 
middle colic (to transverse colon)
right colic (to ascending colon)
ileocolic (ileocecal jxn and appendix)
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15
Q

superior/inferior mesenteric artery borders?

A

where transverse colon bends to last part

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16
Q

inferior mesenteric artery branches 3?

A

descending colon (L colic artery)
sigmoid (sigmoid arteries)
rectum (superior rectal artery)

17
Q

all colic arteries and sigmoid artery feed into what?

A 
marginal artery (runs around length of colon)
this is the anastomotic cnxn btwn SMA and IMA
18
Q

variations

A

common hepatic branches from sup mesenteric

proximal bifurcation of common hepatic

19
Q

pancreas location

A

behind stomach (2ndarily peritoneal)

20
Q

3 sources of pancreatic blood supply?

A

sup pancreaticduodenal
inf pancreaticduodenal
panc branches off of splenic

21
Q

anastomosis between celiac trunk and SMA

A

pacreaticoduodenal arcade

22
Q

2 paths of venous drainage from abdominopelvic cavity

A

hepatic protal vein (to liver)

inferior vena cava (to heart)

23
Q

hepatic portal system gets from?

A

gut tube (thru superior rectum)
pancreas
spleen

peritoneal and 2ndarily retroperitoneal organs

24
Q

inferior VC gets from?

A

kidney
gonads
inferior rectum

PRIMARILY RETROPERITONEAL organs

25
Q

hepatic vein gets from (4)?

A

L/R gastric veins
splenic
inf mesenteric
sup mesenteric

26
Q

3 areas of body that are clinically important (drained by both portal/IVC system)

A

lower esophageal veins
paraumbilical veins
rectal veins

27
Q

what’s significant about portal system veins?

A

no valves!
blood can flow backward and pushed into IVC without passing through liver
varicosities (swollen veins) indicate portal hypertension

28
Q

hemorrhoids “butt”

A

portal vein –> inf mesenteric –> sup rectal veins –> middle/inf rectal –> int iliac (systemic)
dilation and swelling in rectal venous plexus

29
Q

esophageal varices “gut”

A

portal vein –> L gastric –> esophageal –> azygos (systemic)
dilation and rupture when swallowing
most difficult to detect, substantial bleeding

30
Q

paraumbilical varices “caput”

A

portal vein –> paraumbilical (flank round ligament) –> superficial epigastric –> ext iliac (systemic)
dilate and form Caput Medusae

31
Q

what is the hepatic triangle and what traverses it?

A

liver
cystic duct
common hepatic duct
cystic artery goes thru here to supply GB

32
Q

what pathologies can cause narrowing of hepatic vessels?

A

congenital stenosis
thrombosis
liver disease e.g. hepatitis or cirrhosis
ALL cause portal hypertension

zAnatomy Block II (7 decks)

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