ASGE Recognized Industry Associate (ARIA) Training Program for Regeneron | June 2022-GI_Tract_in_Health-Liver_Gallbladder_Pancreas

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The gastrointestinal tract consists of several organs, including the pancreas, esophagus, stomach, gallbladder, liver, small intestine, and large intestine. The liver, located in the right upper abdomen, weighs about 3-4 pounds and has two sources of blood supply - the hepatic artery and the portal vein. The liver is responsible for producing bile, which is stored in the gallbladder. Bile is released in response to a fatty meal and aids in the absorption of fats and fat-soluble vitamins. The liver also has various functions, including synthesizing clotting factors, glucose, proteins, and cholesterol. It also stores glucose, vitamins, iron, and copper, and breaks down medications, drugs, alcohol, and toxins.<br /><br />The pancreas is a glandular organ about 8 inches long. It has both endocrine and exocrine functions. The endocrine functions involve producing hormones - insulin, glucagon, and somatostatin - that act on other parts of the body. The exocrine functions involve producing and secreting enzymes that break down fats, carbohydrates, and proteins. The pancreas also produces bicarbonate to neutralize stomach acid.<br /><br />Understanding the basic anatomy and physiology of the gastrointestinal tract, including the liver, gallbladder, and pancreas, is important for understanding how these organs function in maintaining overall health.

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Stephen Kim, MD

Keywords

gastrointestinal tract

pancreas

liver

gallbladder

absorption

clotting factors

glucose

vitamins

enzymes

overall health