Abdomen, Pelvis & Perineum
One of the following is the watershed area of the colon between the superior and inferior mesenteric arteries (LQ) (AIIMS –Nov’2007)
Pg. 267; Last's Anatomy (11th Ed.)
• "Watershed area" is the medical term referring to regions of the body that receive dual blood supply from the most distal branches of two large arteries, such as the splenic flexure of the large intestine.
• The weakest link in the marginal chain of vessels (of Drummond) is near the left colic (splenic) flexure, between the middle colic artery (mid-gut) & the left colic artery (hind-gut).