Assertion: milk's substance | /r/Synonym | known example
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Source sentences:
text: A pituitary hormone that triggers release of thyroxine (T4) and tiriodothyronine (T3) from the thyroid gland, both of which play key roles in determining the body's metabolic rate and temperature, rate of protein synthesis and sensitivity to a class of substances called catecholaminesthe best known example being the neurotransmitter/hormone epinephrine or adrenalin.