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The pancreatic islets or islets of Langerhans are the regions of the pancreas that contain its endocrine (hormone-producing) cells, discovered in 1869 by German pathological anatomist Paul Langerhans. [1]
The pancreatic islets each contain four varieties of cells: The alpha cell produces the hormone glucagon and makes up approximately 20 percent of each islet. Low blood glucose levels stimulate the release of glucagon.
The pancreatic islets are small islands of cells that produce hormones that regulate blood glucose levels. Hormones produced in the pancreatic islets are secreted directly into the bloodstream by five different types of cells. The alpha cells produce glucagon, and make up 15–20% of total islet cells.
Key anatomical features of the human pancreas. (a) Diagram of the pancreas, and surrounding organs. (b) Schematic representation of organisation of the endocrine and exocrine pancreas at the...
19 Σεπ 2023 · Spotting the latter situation typically involves an unconscious (diabetic) person who may have fruity breath. In this article, we’ll explore the anatomy of the pancreas, including its location, blood supply, innervation, lymphatics, function, and some relevant clinical aspects.
21 Απρ 2024 · The pancreas is an abdominal glandular organ with both digestive (exocrine) and hormonal (endocrine) functions. In this article, we shall look at the anatomy of the pancreas – its structure, anatomical position and neurovascular supply.
The tissues with an endocrine role can be seen under staining as lightly-stained clusters of cells, called pancreatic islets (islets of Langerhans). Darker-staining cells form clusters called acini, which are arranged in lobes separated by a thin fibrous barrier.
