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Function of endocrine system
Chemical control center of the body works closely with the nervous system
proteins sticking out of membranes of target cells. Difference cells have different receptors
Amino acid based hormones
Epinephrine, insulin, adrenaline. Affect enzyme activity to initiate a short term change in the target cell.
Steroid based hormones
Testosterone, estrogen. Affect transcription of DNA to initiate long term changes in target cells.
A release of an initial hormone releases another hormone which stops the initial hormone
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