- chromaffin granules
- organelles found in the chromaffin cells of the adrenal medulla, where epinephrine and norepinephrine are synthesized, stored, and released when needed.
Medical dictionary. 2011.
chromaffin granules
Look at other dictionaries:
Chromaffin — Taking up and staining strongly with Chromium salts. Chromaffin may refer to: Chromaffin cells, neuroendocrine cells in the adrenal medulla. Chromophil cells, hormone producing cells showing chromaffin granules that readily absorb chromium stains … Wikipedia
chromaffin cells — 1. a type of APUD cells that stain readily with chromium salts, their cytoplasmic granules taking on a characteristic brown color; they are found especially in cells of the adrenal medulla and in paraganglia of the coccygeal gland and carotid… … Medical dictionary
chromaffin tissue — Tissue in medulla of adrenal gland containing two populations of cells, one producing adrenaline, the other noradrenaline. The catecholamine is associated with carrier proteins (chromogranins) in membrane vesicles (chromaffin granules) … Dictionary of molecular biology
Chromaffin cell — Chromaffin cells are neuroendocrine cells found in the medulla of the adrenal gland (suprarenal gland located above the kidneys) and in other ganglia of the sympathetic nervous system. They are derived from the embryonic neural crest. In the… … Wikipedia
chromaffin — Giving a brownish yellow reaction with chromic salts; denoting certain cells in the medulla of the adrenal glands and in paraganglia. SYN: chromaphil, chromatophil (3), chromophil (3), chromophile, pheochrome (1). [chrom + L. affinis, affinity] * … Medical dictionary
chromaffin — n. tissue in the medulla of the adrenal gland consisting of modified neural cells containing granules that are stained brown by chromates. Adrenaline and noradrenaline are released from the granules when the adrenal gland is stimulated by its… … The new mediacal dictionary
Medullary chromaffin cell — Adrenal gland. (Medulla labeled at bottom right.) Latin endocrinocytus medullaris Code TH … Wikipedia
endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… … Universalium
hormone — hormonal, hormonic /hawr mon ik, moh nik/, adj. /hawr mohn/, n. 1. Biochem. any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues… … Universalium
Epinephrine — Adrenaline and Adrenalin redirect here. For other uses, see Adrenaline (disambiguation). (R) (–) L Epinephrine or (R) (–) L adrenaline … Wikipedia
