· It is a retro peritoneal gland 80 gm in weight.
· It is divided into a head 30% of the gland and a body and tail 70%.
· The head lies within the concavity of the duodenum overlying the vena cava at the level of L2.
· The neck is that part overlying the aorta and having superior mesenteric vessels as a posterior relations.
· A process projects from the head and encircle the superior mesenteric vessels called uncinate process. Behind the neck of the pancreas near its upper border the superior mesenteric vein join the Splenic vein to form the portal vein.
· The main pancreatic duct ramifies into inter and intra lobular ducts, ductules and finally acini. The islets of Langerhans are distributed throughout the pancreas.
· Islet cells consists of different cell types: β cells secrete insulin, A cells secrete glucagons, and D cells producing somatostatin and small number of polypeptide.
SOURCE: DR. AYMAN SALEM'S BOOK
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