adrenal medulla

Pronunciation: (uh-DREE-nul meh-DOO-luh)

The inner part of the adrenal gland (a small organ on top of each kidney). The adrenal medulla makes chemicals such as epinephrine (adrenaline) and norepinephrine (noradrenaline) which are involved in sending nerve signals.

Definition from:

Anatomy of the adrenal gland. There are two adrenal glands, one on top of each kidney. The outer part of each gland is the adrenal cortex; the inner part is the adrenal medulla.Hay dos glándulas suprarrenales una por encima de cada riñón. La parte exterior de cada glándula es la corteza suprarrenal; la parte interior es la médula suprarrenal.2006-04-14 Date last modified: 2013-06-03