The pancreas is a retroperitoneal structure, which is placed at the level of the transpyloric plane of Addison at L1.

It is divided into the following parts

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Head of pancreas

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Neck of pancreas

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Body of pancreas

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Tail of pancreas

It is provided with two ducts

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Main pancreatic duct

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Accessory duct of Santorini

The pancreas is placed behind the stomach and the omental bursa. The omental bursa which is placed directly in front of it is placed directly behind the stomach and lies in the so called stomach bed.

The head of the pancreas has an intimate relationship with the splenic artery which runs on top of it to reach its tail where it enters the lienorenal ligament  in order to reach the hilus. The splenic vein runs at the pancreatic bed (i.e. behind the pancreas) in order to reach the neck of the pancreas where it joins the superior mesenteric vein coming from the intestine. The superior mesenteric vein receives tributaries such as the inferior mesenteric vein and then joins the splenic vein behind the neck of the pancreas in order to become the portal vein.

Artery

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Splenic artery, which is a branch of the celiac trunk.

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Superior pancreaticoduodenal artery is a branch of the gastroduodenal branch of the common hepatic artery.

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Inferior pancreaticoduodenal artery, which is from the superior mesenteric artery.

The pancreticoduodenal arteries supply the head of the pancreas. The splenic artery supplies the remaining parts.

Veins

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Splenic vein, which is a tributary of the portal vein.

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Superior pancreaticoduodenal vein drains into the splenic vein.

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Inferior pancreaticoduodenal vein drains into the superior mesenteric vein which helps to form the  portal vein.

Nerves

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Parasympathetic motor fibers from right vagus

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Sympathetic fibers, which are vasomotor to the pancreas from the celiac ganglion of the celiac plexus. They are from the thoracic splanchnic nerves.

 

 

More

 

Uncinate process

Pancreaticpseudocyst

Tuber omentale

 

 

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Creator: Oluwole Ogunranti


Accessory gut organs- 3D rotation

    

1 tail 2 body 3 neck 4 uncinate process 5 main pancreatic duct 6 common bile duct 7 accessory pancreatic duct 8 duodenum

 

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