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Summary Anatomy Item Literature (56) Expression Attributions Wiki

Anatomy Term: adrenal medulla
XAO ID: 0000166
Synonyms: chromaffin cells
Definition: "Part of the adrenal gland, located at the center of the gland and surrounded by the adrenal cortex. It is the innermost part of the adrenal gland, consisting of cells that secrete epinephrine, norepinephrine, and a small amount of dopamine in response to stimulation by sympathetic preganglionic neurons. Composed mainly of hormone-producing chromaffin cells, it is the principal site of the conversion of the amino acid tyrosine into the catecholamines adrenaline (epinephrine), noradrenaline (norepinephrine), and dopamine."
Stage Range: NF stage 32 to death
Marker Genes:
Develops From:
Anatomy Item Stage Range
trunk neural crest NF stage 13 to NF stage 31
Develops Into:
Parent(s): trunk neural crest


Parent(s): tissue (is_a) adrenal gland (part_of)


References: Ontology Lookup Service , XB ANATOMY ONTOLOGY