Choose the appropriate lettered structure in this CT scan of the abdomen at the level of the upper lumbar vertebra. Which structure is a direct branch of the aorta and supplies blood to the ascending and transverse colons?: (A) A, (B) B, (C) C, (D) D
Answer is D. (d) The superior mesenteric artery, a direct branch of the aorta, supplies blood to the ascending and transverse colons.