Summary Anatomy of the abdominal vasculature high-yield notes

Abdomen




m.mn/. m.n . . .
Abdominal enters abdomen @ 1- 12
•




-


bifurcates at La
Aorta BRANCHES
•
anterior : celiac SMA , ,
IMA

lateral :
suprarenal renal
-



,



visceral
testicular / ovarian
'

lateral abdominal : interior phrenic ,

4 lumbar arteries

- terminal :
2 iliac arteries
median sacral artery

COMMON .
divides into internal and
Iliac external branches at

sacroiliac joint
-

crossed anteriorly by ureter


at bifurcation on each side




Vena cava on R side of aorta
-




.
pierces diaphragm at 1-8

TRIBUTARIES
'
2 anterior visceral : hepatic veins
-
3 lateral visceral : R suprarenal vein 1L drains to L renal)
renal veins, R gonadal vein

-

5 lateral abdominal : interior phrenic , 4 lumbar veins


iliac veins
-

3 veins of origin : 2 common ,




medial sacral vein




compression of the NC

-

Etiologies :
pregnancy retroperitoneal
,
tumors

= v
'

SIS ✗ :
edema of feet dilatation of anastomoses

and ankles
joining NC to SVC


-
alternative pathway for return to RA :



carat -

carat shunt

, Abdomen




.fi#.: : : . : -
LYMPHATICS ON
POSTERIOR ABDOMINAL WALL




÷::÷::*
"
-

efferent vessels : intestinal trunk → drains to cisterna chyli




•
lateral Aortic LN .

alongside abdominal aorta




-
cysterna Chyli -
thoracic duct in abdomen

R
.

elongated sac on of aorta

-
LI -
L2

•
receives : intestinal trunk , R and L lumbar trunks , LN from lower thorax