Endocrine system Notes
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Chapter 39 Notes
The Endocrine System
The endocrine system is made of glands that release their products into the bloodstream. There products broadcast messaged throughout the body.
Hormones are chemicals that travel through the bloodstream and affect the activities of other cells. They bind to specific chemical receptors on those cells. Cells that have receptors for a particular hormone are called target cells. If a cell doesn't have a particular receptor or receptors that don't respond to the hormone, then the hormone has no effect on it.
Glands are organs that produces and releases…
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