The endocrine system is a control system of ductless glands that secrete chemical messengers called hormones that circulate within the body via the bloodstream to affect distant organs.
Hormones act as "messengers", and are carried by the bloodstream to different cells in the body, which interpret these messages and act on them.
For more information about the topic Endocrine system, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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