Predominant blood supply to the supraduodenal bile duct is derived from:

A. Vessels that run upward along the bile duct from the duodenal end of the duct such as the retroduodenal and the gastroduodenal aeries.

B. Vessels that run downward along the bile duct from the hepatic and of the duct such as the right hepatic aery.

C. Vessels that arise from the hepatic aery proper as it runs up along the common bile duct and supplies it with twigs in a non-axial distribution.

D. Vessels that arise from the cystic aery.

Correct Answer: Vessels that run upward along the bile duct from the duodenal end of the duct such as the retroduodenal and the gastroduodenal aeries.

Description: Blood supply of supraduodenal bile duct Axial blood supply:-(98%) The most impoant of these vessels run along the lateral borders of the bile duct and are called the '3 o clock' and '9 o' clock aeries.60% of the blood supply occurs from the duodenal (caudal) end of the duct primarily from branches of the retroduodenal aery (Posterior superior pancreaticoduodenal aery). 38% of the blood supply occurs from the hepatic (cephalic) end of the right hepatic aery. Non -axial blood supply:- only 2% of blood supply to the supraduodenal bile duct from the branches of the hepatic aery proper

Category: Anatomy

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