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Explaining more about the pancreas anatomy

By Edited Nov 13, 2013 0 0

Introducing what pancreas anatomy entails

Anatomy of the pancreas(99931)
Studying pancreas anatomy will focus on the location of the pancreas and the way it is connected to other organs of the digestive system. It is a digestive accessory organ which functions both as an endocrine organ and as an exocrine organ. It is about one to six inches in length and weighs about sixty to one hundred grams in an adult. It is located in the second level of the lumbar region, a region known as retro-peritoneum. The pancreas has two extensions, one in an oblique direction and the other in a transverse direction. It is divided into head region, neck region, body region and the tail region.

Studying the head as part of pancreas anatomy

Function of the Pancreas

The head is a flattened structure which is about two to three centimeters and includes the uncinate process. It is attached to the second and third region of the duodenum on the right side. It is traced to merge with the neck towards the left side. GDA insertion is found in the border between the head and the neck of the pancreas.

Studying the neck in regard to pancreas anatomy

Neck of the Pancreas

The neck is about two and a half centimeters in length. Its superior borders are related to the pylorus structure of the stomach. It is from the inferior border of the head that the mesenteric vessels emerge. Splenic vein and SMV are found to confluence forming the portal vein in the posterior side of the neck. It is at the posterior side of the neck that you will find no branches connected to the pancreas.

Body and tail of the pancreas-pancreas anatomy

Anatomy and physiology of the pancreas

This is a long structure which appears to be elongated. Its anterior surface is separated from the stomach by the presence of lesser sac. Its posterior surface is related to the aorta of the heart as well as adrenal glands. Splenic vein is found to run deep in the posterior surface of the body very close to the posterior border. Transverse mesocolon covers the inferior surface of the body.  

The tail is narrow and appears to be short segmented. It found in the twelfth level of the thoracic vertebrae. It is found to terminate in the splenic hilum. It is also traced to be in close relationship with splenophrenic ligament. The anterior side of the tail is closely related to splenic flexure of the alimentary colon. The tail is very prone to damages during the surgical removal of the pancreas.

Purpose of the pancreas
Running throughout the entire length of the pancreas is the pancreatic duct. It is found to join CBD at the region of ampulla of vater.  Pancreatic duct is about two to four centimeters and it drains more than twenty branches. The pressure ( ductal pressure) in the duct serves to prevent the reflux which may end up damaging it. The superior region of the head is drained by the lesser duct which then empties its contents to the second portion of the alimentary duodenum.

Portal vein and portal artery facilities the blood circulation of the pancreas and thus are part of pancreas anatomy in general.

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