<prompt> Blood supply of sigmoid colon is by -a Middle colic arteryb Marginal arteryc Left colic arteryd Sigmoid arterycdabbd  <response>: Blood supply of sigmoid colon comes from the sigmoid artery and marginal artery of sudeck .The marginal artery is an arterial cascade formed by anastomosis of -ileocolic, rt. colic, middle colic, left colic, and sigmoid arteries. And blood supply of colon Large intestine is derived from the marginal artery. 