Epinephrine

Definition

Epinephrine is a hormone produced by the adrenal glands in response to stress or danger. It helps prepare the body for a fight-or-flight response by increasing heart rate, dilating airways, and releasing glucose into the bloodstream.

Related terms

Adrenal Glands: These are small glands located on top of each kidney that produce hormones like epinephrine. They help regulate various bodily functions such as metabolism, blood pressure, and stress response.

Fight-or-flight Response: This is a physiological reaction triggered by a perceived threat or danger. When activated, it prepares your body to either confront the threat or run away from it by increasing energy levels, heart rate, and alertness.

Hormone: A chemical substance produced by the endocrine glands that travels through the bloodstream and affects target cells or organs in different parts of the body. Hormones play crucial roles in regulating various bodily functions.