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  2. Pancreatic islets - Wikipedia

    en.wikipedia.org/wiki/Pancreatic_islets

    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 constitute 1–2% of the pancreas volume and receive 10–15% of its blood flow. [2] [3] The pancreatic islets are ...

  3. Beta cell - Wikipedia

    en.wikipedia.org/wiki/Beta_cell

    Beta cells (β-cells) are specialized endocrine cells located within the pancreatic islets of Langerhans responsible for the production and release of insulin and amylin. [1] Constituting ~50–70% of cells in human islets, beta cells play a vital role in maintaining blood glucose levels. [2] Problems with beta cells can lead to disorders such ...

  4. Alpha cell - Wikipedia

    en.wikipedia.org/wiki/Alpha_cell

    At first, there was a lot of controversy about what the Islets were made of and what they did. [3] It appeared that all of the cells were the same within the Islet, but were histologically distinct from acini cells. [3] Laguesse discovered that the cells within the Islets of Langerhans contained granules that distinguished them from acini cells ...

  5. Pancreatic polypeptide cells - Wikipedia

    en.wikipedia.org/wiki/Pancreatic_polypeptide_cells

    Pancreatic polypeptide cells (PP cells), or formerly as gamma cells (γ-cells), or F cells, are cells in the pancreatic islets (Islets of Langerhans) of the pancreas. Their main role is to help synthesize and regulate the release of pancreatic polypeptide (PP) , after which they have been named.

  6. Epsilon cell - Wikipedia

    en.wikipedia.org/wiki/Epsilon_cell

    Estimates of the average number of ε-cells per islet in adults vary in number with differing results. One study found that there are about 3 to 5 ε-cells present in each islet of the adult pancreas, which includes a total of about 1,000 islets. [4] Another study observed an average of 12±1.2 ε-cells per islet. [5]

  7. Enteroendocrine cell - Wikipedia

    en.wikipedia.org/wiki/Enteroendocrine_cell

    Pancreatic enteroendocrine cells are located in the islets of Langerhans and produce most importantly the hormones insulin and glucagon. The autonomous nervous system strongly regulates their secretion, with parasympathetic stimulation stimulating insulin secretion and inhibiting glucagon secretion and sympathetic stimulation having opposite ...

  8. Glucagon - Wikipedia

    en.wikipedia.org/wiki/Glucagon

    n/a Ensembl n/a n/a UniProt n a n/a RefSeq (mRNA) n/a n/a RefSeq (protein) n/a n/a Location (UCSC) n/a n/a PubMed search n/a n/a Wikidata View/Edit Human Glucagon is a peptide hormone, produced by alpha cells of the pancreas. It raises the concentration of glucose and fatty acids in the bloodstream and is considered to be the main catabolic hormone of the body. It is also used as a medication ...

  9. Insulin signal transduction pathway - Wikipedia

    en.wikipedia.org/wiki/Insulin_signal...

    Insulin is produced by the pancreas in a region called islets of Langerhans. In the islets of Langerhans, there are beta-cells , which are responsible for production and storage of insulin. Insulin is secreted as a response mechanism for counteracting the increasing excess amounts of glucose in the blood.