Great Vessels of the Abdomen Flashcards
Aortic hiatus of diaphragm spine location
T12
Aorta bifurcation spine level/other known area
L4/umbilicus
What comes off celiac axis
R->L
Common hepatic artery
Left gastric artery
Splenic artery
Common hepatic artery splits into
Hepatic artery proper and gastroduodenal artery
Splenic artery travels/supplies
Along superior aspect of pancreas
Supplies spleen and tail of pancreas
Left gastric artery travels/supplies
Along lesser curvature of stomach
Supplies stomach
Adrenal arteries arises
Between CA and SMA on lateral aspect of aorta
Not seen on ultrasound
SMA full name/supplies
Superior mesenteric artery
Supplies small intestines, right/mid transverse colon, ascending colon
SMA surrounded by
Hyperechoic fat
SMA surrounded by
Hyperechoic fat
Location of renal arteries
Inferior to SMA
Is the R/L renal arteries anterior or posterior to R/L renal veins
Posterior
How does the RRA get past the IVC (ant/post)
Posterior
RRA compared to LRA (length, position and why)
RRA is longer (travels further to kidney)
RRA slightly inferior (liver pushes stuff lower)
Gonadal arteries originate from
Anterior aspect of aorta inferior to renal arteries (not typically seen on ultrasound)
IMA originates
Anterior aorta at L3 (bifurcation at L4 so very low)
IMA supplies
Left transverse colon, descending colon, sigmoid colon, rectum
Lumbar arteries (how many, origination, supplies)
Paired (4-5 pairs)
Originate lat/post of aorta
Supplies lumbar spine
Median sacral artery (where/supplies)
Most Inferior branch of aorta
Supplies sacrum
Not seen on ultrasound
Common iliac arteries formed by
Formed by bifurcation of aorta at L4
CIA vs CIV (post/ant)
CIA are anterior
CIA branch into
Internal (to pelvis) and external (to legs) iliac arteries
Where do CIV’s meet to form IVC
L5
Where does IVC pierce diaphragm
T8
I8 10eggs At12
IVC. Esophagus. Aorta
CIV in position to CIA and ureters
Posterior to both
Lumbar veins (how many, origin)
4-5 pairs
Lat walls of IVC and CIV
Accompany lumbar arteries
Gonadal veins AKA
Ovarian or testicular veins
Gonadal veins ascends along
Psoas muscle
R vs L gonadal vein
Right: drains into ant IVC below renal vein
Left: drains into left renal vein because aorta is in the way
Renal veins vs renal arteries
Veins anterior to arteries
RRV vs LRV
RRV shorter/slightly inferior
How does LRV travel around aorta
Ant aorta post to SMA
What two veins dump into LRV
Left gonadal and suprarenal veins
R vs L adrenal (suprarenal) veins
Right drain into IVC
Left drains into LRV
Hepatic veins travel from/to
Ant inf position within liver to post sup position to join IVC
Where do hepatic veins empty into IVc
Just inferior to diaphragm
What is the only arteries that branch off the lateral aorta (seen on ultrasound)
RRA/LRA
