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06-04-2008, 09:15 AM
It is pear-shaped organ composed of fundus, body and neck connected with cystic duct. At the neck, there is dilatation called infundibulum (Heartmann's pouch).
m Blood supply of the gall bladder:
1- Arterial: cystic artery from Rt. hepatic a. It has no accompanying vein.
2- Venous drainage: usually by small venules open directly to the hepatic venous sinuses.
m The Common Bile Duct:
About 7.5cm long, is formed by the junction of the cystic and common hepatic ducts. It is divided into four parts:
1- The supraduodenal portion, about 2.5cm long, runs in the free edge of the lesser omentum.
2- The retroduodenal portion.
3- The infraduodenal portion lies in a groove, but at times in a tunnel in the posterior surface of the pancreas.
4- The intraduodenal portion passes obliquely through the wall of the second part of the duodenum where it is surrounded by the sphincter of Oddi. It terminates by opening on the summit of the papilla of Vater.
SOURCE: DR. AYMAN SALEM'S BOOK
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