The word "medulla" refers to the inner part of certain body structures, such as the brain or the kidneys. It is often associated with key functions and important control centers that help regulate vital processes in the body. Full definition
In the chromaffin cells of adrenal medulla, paracrinally or autocrinally released neurotransmitters induce profound changes in Ca2 + channel gating and Ca2 + - dependent events controlling catecholamine secretion and cell activity. (science.institut-curie.org)
«Dreams turned off and on with a neural switch: Activating small group of neurons in medulla causes rapid transition to REM sleep.» (sciencedaily.com)
Therefore, fat is able to provide the necessary small amount of glucose for the brain, red blood cells and renal medulla. (idmprogram.com)