Massive colonic bleeding in a patient of Di veiculosis is from -
Inferior mesenteric aery
Superior mesentric aery
Coeliac aery
Gastro-duodenal aery
Ans. is 'b' i.e., Superior Mesentric Aery Although diveiculosis involves mainly the left side of colon, bleeding occurs mostly from right side of colon. Right side is supplied by superior mesentric aery. "Hemorrhage from a colonic diveicula is the most common cause of hematochezia in patients over the age of 60." - Harrison 16/e, p 1796