Question:hard
Identify artery 'X' in the given angiography anatomy image.
Identify artery 'X' in the given angiography anatomy image.
Show Hint
Anterior aortic branch at L1 below the celiac, feeding the midgut arcades.
Updated On: Jun 24, 2026
- Superior mesenteric artery
- Subclavian artery
- Celiac artery
- Brachiocephalic artery
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: Study the angiographic tree at X. An anterior aortic branch springs out around L1, immediately below the celiac origin, and ramifies into a series of intestinal arcades feeding the bowel. This pattern names the vessel.
Step 2: That vessel is the superior mesenteric artery, the midgut supply running from the major duodenal papilla to the proximal two-thirds of the transverse colon. Its many jejunal-ileal branches and the ileocolic, right colic and middle colic arteries give the looped arcade look seen on the study.
Step 3: Discard the others by territory. The subclavian and brachiocephalic arteries belong to the upper body and aortic arch, not the abdomen, and the celiac trunk lies just cephalad to the SMA and feeds the foregut with a short three-way split. The bowel-supplying anterior abdominal branch is the SMA.
\[\boxed{\text{Superior mesenteric artery}}\]
Step 2: That vessel is the superior mesenteric artery, the midgut supply running from the major duodenal papilla to the proximal two-thirds of the transverse colon. Its many jejunal-ileal branches and the ileocolic, right colic and middle colic arteries give the looped arcade look seen on the study.
Step 3: Discard the others by territory. The subclavian and brachiocephalic arteries belong to the upper body and aortic arch, not the abdomen, and the celiac trunk lies just cephalad to the SMA and feeds the foregut with a short three-way split. The bowel-supplying anterior abdominal branch is the SMA.
\[\boxed{\text{Superior mesenteric artery}}\]
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