Islet
Islet
Islet (pronounced: /ˈaɪlɪt/), also known as an insular cell, is a type of cell found in the pancreas. The term "islet" is derived from the Latin word "insula", which means "island".
Function
Islets are responsible for the production of several hormones, including insulin, glucagon, and somatostatin. These hormones play a crucial role in maintaining glucose homeostasis in the body.
Structure
An islet is composed of several types of cells, including alpha cells, beta cells, delta cells, PP cells, and epsilon cells. Each of these cell types produces a different hormone.
Related Terms
- Alpha cells: These cells produce glucagon, a hormone that raises blood glucose levels.
- Beta cells: These cells produce insulin, a hormone that lowers blood glucose levels.
- Delta cells: These cells produce somatostatin, a hormone that inhibits the release of other hormones.
- PP cells: These cells produce pancreatic polypeptide, a hormone that regulates the secretion of pancreatic enzymes.
- Epsilon cells: These cells produce ghrelin, a hormone that stimulates hunger.
- Insulin: A hormone produced by beta cells that helps to regulate blood glucose levels.
- Glucagon: A hormone produced by alpha cells that raises blood glucose levels.
- Somatostatin: A hormone produced by delta cells that inhibits the release of other hormones.
- Glucose homeostasis: The balance of insulin and glucagon to maintain blood glucose.
See Also
External links
- Medical encyclopedia article on Islet
- Wikipedia's article - Islet
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