Section 2
Hormones
Book
Version 29
By Boundless
By Boundless
Boundless Anatomy and Physiology
Physiology
by Boundless
4 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/14332/square/-201211071352324192161047.jpeg)
Mechanisms of Hormone Action
A hormone is a secreted chemical messenger that enables communication between cells and tissues throughout the body.
![Thumbnail](../../../../../../figures.boundless-cdn.com/152/square/ii-nuclear-receptor-action.jpg)
Hormone Receptors
Hormones activate a cellular response in the target cell by binding to a specific receptor in the target cell.
![Thumbnail](../../../../../../figures.boundless-cdn.com/16463/square/pdb-2dez-ebi.jpeg)
Chemistry of Hormones
There are three classes of hormones: peptide hormones, lipid hormones, and monoamine hormones.
![Thumbnail](../../../../../../figures.boundless-cdn.com/3660/square/illu-endocrine-system.jpg)
Transport of Hormones
Hormones synthesized by the endocrine glands are transported throughout the body by the bloodstream.