Where Does Norepinephrine Come From?

Where Does Norepinephrine Come From? Norepinephrine also called noradrenaline is both a hormone, produced by the adrenal glands, and a neurotransmitter, a chemical messenger which transmits signals across nerve endings in the body. Norepinephrine is produced in the inner part of the adrenal glands, also called the adrenal medulla. What triggers norepinephrine release? Norepinephrine is