hypothalamic thermostat

hypothalamic thermostat: the mechanism for control of body temperature, which involves two thermoregulatory centers of the hypothalamus: the preoptic area of the anterior hypothalamus, which senses core temperature and compares it to the set-point, and an area in the posterior hypothalamus that integrates signals from the preoptic area and from cold and warmth receptors in the skin and controls mechanisms of heat dissipation (skin vasodilation, sweating) and production and conservation (skin vasoconstriction, release of epinephrine and thyroid hormones, sympathetic stimulation).

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