Which of the following is a direct branch of Inferior mesenteric aery: (A) Superior rectal aery, (B) Middle rectal aery, (C) Inferior rectal aery, (D) Inferior epigastric aery
Answer is A. Inferior and middle rectal aeries are branches of internal iliac aery which is a branch of common iliac aery whereas superior rectal aery is a direct branch of inferior mesenteric Aery which is a branch of abdominal aoa. There are three major branches that arise from the IMA: Left colic aery, Sigmoid aery and Superior rectal aery.