The chemical messengers that stimulate the body's organs and help to maintain the body's internal environment (its milieu) are called ____.

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Hormones are the chemical messengers that stimulate the body's organs and help to maintain the body's internal environment. Neurotransmitters are chemical messengers that transmit signals across a synapse between nerve cells. Steroids are a type of organic molecule with a specific structure that can have a variety of functions in the body, including as hormones. Receptors are proteins on cell surfaces that bind to specific molecules, such as hormones, and trigger a response within the cell.

The Chemical Messengers That Stimulate the Body's Organs and Help