alpha cell(redirected from Glucagon-secreting cells)
Also found in: Encyclopedia.
Etymology: Gk, alpha, first letter of the Greek alphabet; L, cella, storeroom
one of a class of cells located in the adenohypophysis or in the pancreatic islets. Alpha cells in the pancreas produce glucagon, which raises the level of glucose in the blood.
alpha cellA cell of the islets of Langerhans which produces glucagon in response to hypoglycaemia, growth hormone and some amino acids.
1. An enteroendocrine cell that produces glucagon and is found in the pancreatic islets. Synonym: A cell
2. An acidophil of the adenohypophysis (anterior pituitary gland).
See also: cell