Endocrine Signaling

Definition

Endocrine signaling refers to the process where endocrine cells release hormones directly into the bloodstream. These hormones then travel to target cells located in different parts of the body.

Analogy

Think of endocrine signaling like a radio broadcast. The radio station (endocrine cell) sends out signals (hormones) that can be picked up by any radio (target cell) tuned into the right frequency.

Related terms

Gland: An organ in an animal's body that synthesizes substances such as hormones for release into the bloodstream or into cavities inside the body or its outer surface.

Hormone: A chemical substance produced in the body that controls and regulates the activity of certain cells or organs.

Bloodstream: The blood circulating through the heart, arteries, capillaries, and veins which is responsible for carrying nutrients and oxygen to all parts of our bodies.