Question

Identify artery 'X' in the given angiography anatomy image.

• A. Superior mesenteric artery
• B. Subclavian artery
• C. Celiac artery
• D. Brachiocephalic artery

Hint:

Anterior aortic branch at L1 below the celiac, feeding the midgut arcades.

Answer 1

The Correct Option is A

Step 1: The angiogram shows an anterior branch of the abdominal aorta arising at about the L1 level, just below the celiac trunk, that fans out to supply the small intestine and proximal colon. This branching pattern identifies the superior mesenteric artery (SMA).

Step 2: The SMA is the second of the three major anterior branches of the abdominal aorta. It supplies the midgut, from the major duodenal papilla to the proximal two-thirds of the transverse colon, and gives multiple jejunal and ileal branches plus the ileocolic, right colic and middle colic arteries, producing the characteristic arcade appearance.

Step 3: The distractors arise elsewhere. The subclavian and brachiocephalic arteries are upper-thoracic vessels supplying the arm and head, not the abdomen. The celiac artery arises just above the SMA and supplies the foregut with a different, shorter branching pattern. The midgut arcade fits the superior mesenteric artery (option a).