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Abdominal Vasculature:

Arterial supply

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Abdominal Aorta

The main bld. Supply to the abdomin comes from:Abdominal Aorta

Starts in aortic hiatus opposite to T12

Ends opposite to L4 by dividing into:

2 common iliac arteries

& ???

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Branches of Abd. Aorta

Abd. Wall branches:5 lumbar a. (each side)

1st lumbar = inf. phrenic artery

Abd. Cavity branches:

(Visceral)

3 anterior

3 lateral

3 terminations

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3 anterior:

celiac trunk

Sup. MesentericInf. Mesenteric

3 lateral:

suprarenal

renal

gonadal (testicular or ovarian)

3 terminations:

2 common iliacs (L4)median sacral a.

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Celiac Trunk

At level of T12 just beneath the hiatus

Very short

Divides into 3 branches:

Lf.:splenic a. (largest)

Rt.:common hepatic a.

Sup.:left gastric a.

(lesser curvature superiorly)

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Splenic Artery

Largest branch of celiac trunk

Pass post. to the stomach & sup. to pancreas

Enters the ?? ligament to reach the hilum of the spleen

Branches:

pancreatic arteries

short gastric arteries (to the fundus)

left gastro-epiploic a. (greater curvature on lf.)

(synonym: gastro-omental)

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Splenic Artery

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Hepatic Artery

Rt. Branch of celiac trunk

Pass in the Rt. Side to the hilum of the liver

Part of the portal triad (what is the triad?)

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Porta Hepatis

In the middle of visceral surface

Contains: (Portal Triad)

Portal vein (in)

Hepatic artery (in)

Bile duct (out)

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Hepatic Artery

Branches:

Rt. Gastric a.:

where??

Gastroduodenal a.:

descends behind duodenum (1st part)

gives: Rt. Gastro-epiploic & sup. Pancreaticoduodenal

2 terminations:Lf. Hepatic a.

Rt. Hepatic a.

cystic a. comes from Rt. Hepatic a.

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Celiac Trunk Branches (Review)

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Superior Mesenteric Artery

Arises:below celiac trunk

& just above the Lf. Renal vein

descends:

post. to neck of ??

Ant. to 3rd part of duodenum

Supplies the intestine:

from lower of duodenum

Until proximal 2/3 of

transverse colon

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Sup. Mesenteric a.

Relations of Superior Mesenteric Artery

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Main Branches of Sup. Mesenteric

(Read Your Text)

1. Inf. pancreaticoduodenal a.

anastomose with sup. Pancreaticoduodenal a. (comes from??)

2. Jejunal & ileal branches.

3. Ileocolic a.:

to ileum, cecum & appendix, and part of ascending colon

4 branches ?

gives off the appendicular a. from(which artery?)

4. Right colic a.:

supplies the ascending colon

5. Middle colic a.:

supplies proximal 2/3 of transverse colon

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Inferior Mesenteric Artery

Supplies intestine:

From distal 1/3 of transverse colon

Upper of Anal canal

Runs downward to the left.

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Branches of Inf. mesenteric a. (read your text)

Lf. Colic:

supplies distal 1/3 of trans. Colon

& descending colon

Sigmoid arteries:

2-3 branches

sigmoid colon

Superior rectal a.:

rectum &upper of anal canal