Portal vein starts at level of?: (A) L2, (B) L3, (C) L4, (D) L5
Answer is A. Ans. A L2Ref: Netter's Clinical Anatomy, 3rd ed. pg. 202* Portal vein starts at level of L2 vertebra and is formed by junction of superior mesenteric vein and splenic vein. It is 8 cm long and lies behind the neck of pancreas.* Normal portal vein pressure is 5-10 mm Hg.