Chapter 18: The Endocrine System

epinephrine, norepinephrine. thyroid hormone. polypeptides longer chains than amines. insulin, growth hormone. glycoproteins. FSH , LH , TSH. cheap ! Mechanisms of hormone action. affect nucleus - gene activation. turns on/off specific gene. steroid family. non-steroid family thyroid hormone Vitamin D. second-messenger systems ................
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