NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,051 terms related to cancer and medicine.
- adrenal medulla
- listen (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.