Question

The vein that does not open in heart is

• A. Precaval
• B. Postcaval
• C. Pulmonary
• D. Posterior mesenteric.

Answer 1

The correct option is D Posterior mesenteric.

D. Posterior mesenteric

Reason: The posterior mesenteric vein is a blood vessel which drains blood from the small intestine (jejunum and ileum). At its termination behind the neck of the pancreas, it combines with the splenic vein to form the hepatic portal vein which means it doesn't open into heart. So, option D is correct.