This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
Inferior mesenteric aery supplies all of the following except 
Select and explain. 
A. Rectum, B. Sigmoid colon, C. Splenic flexure, D. Right colic flexure
D: Right colic flexure
Answer: D: Right colic flexure 
Explanation: Inferior mesenteric aery, often abbreted as IMA, supplies the large intestine from the left colic (or splenic) flexure to the upper pa of the rectum, which includes the descending colon, the sigmoid colon, and pa of the rectum.