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| chemical messengers released in one part of the body that travel through the bloodstream and affect activities in other cells in other parts of the body |
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Definition
| an organ that produces and releases a substance or secretion |
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Definition
| release secretion into the bloodstream |
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| bean-sized gland at base of skull; secretes several hormones that directly regulate many body functions |
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Definition
| part of brain above and attached to posterior pituitary; controls the secretions of pituitary |
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| located at the base of neck wrapped around trachea; has major role of regulating metabolism |
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| made up of 4 glands on back surface of thyroid; hormones produced act with thyroid to regulate calcium levels |
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| 2 pyramid structures on top of kidneys; release hormones that help the body deal with stress |
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