What is adrenal medulla?

  • (noun): The medulla of the adrenal gland; secretes epinephrine.

Adrenal Medulla

The adrenal medulla is part of the adrenal gland. It is located at the center of the gland, being surrounded by the adrenal cortex. It is the innermost part of the adrenal gland, consisting of cells that secrete epinephrine (adrenaline), norepinephrine (noradrenaline), and a small amount of dopamine in response to stimulation by sympathetic preganglionic neurons.

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Some articles on adrenal medulla:

Adrenal Medulla - Pathology
... including Pheochromocytoma (most common), a catecholamine-secreting tumor of the adrenal medulla Neuroblastoma, a neuroendocrine tumor of any neural crest tissue of the sympathetic ...
Adrenal Gland - Anatomy and Physiology - Medulla
... The adrenal medulla is the core of the adrenal gland, and is surrounded by the adrenal cortex ... The chromaffin cells of the medulla, named for their characteristic brown staining with chromic acid salts, are the body's main source of the circulating catecholamines epinephrine and norepinephrine ... To carry out its part of this response, the adrenal medulla receives input from the sympathetic nervous system through preganglionic fibers originating in the thoracic ...
Adrenal Tumor - Tumors of The Adrenal Medulla
... The adrenal medulla is located anatomically at the center of each adrenal gland, and is composed of neuroendocrine (chromaffin) cells which produce and release epinephrine (adrenaline) into the bloodstream in ... are the two most important tumors which arise from the adrenal medulla ... Both tumors may also arise from extra-adrenal sites, specifically, in the paraganglia of the sympathetic chain ...
Sympathetic Nervous System - Overview
... neurons of sweat glands and chromaffin cells of the adrenal medulla ... Chromaffin cells of the adrenal medulla are analogous to post-ganglionic neurons the adrenal medulla develops in tandem with the sympathetic nervous system and ...