What is the primary hormonal product of the adrenal medulla?

The adrenal medulla is primarily responsible for the production and secretion of catecholamines, specifically epinephrine and norepinephrine. However, epinephrine is considered the principal hormonal product of the adrenal medulla. It plays a crucial role in the body's "fight or flight" response, preparing the body for rapid action in stressful situations by increasing heart rate, dilating airways, and enhancing energy availability.

While the adrenal medulla does produce some norepinephrine, the level of epinephrine produced is significantly higher, making it the dominant hormone released into the bloodstream. The adrenal cortex, on the other hand, produces hormones such as cortisol and aldosterone, which are not products of the adrenal medulla. This distinction is important because it highlights the unique functions of different parts of the adrenal gland and their respective hormone outputs.