Thermoreceptor(redirected from Thermoreceptors)
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a nerve ending found in various tissues and organs whose specific function is to react to changes in body temperature by changing the frequency of bioelectric impulses. Thermoreceptors send appropriate signals to the thermoregulatory center. The skin contains both cold and heat receptors. Cold receptors show a maximum frequency of 9–12 impulses per sec when the skin temperature is between 25°C and 30°C, and heat receptors show a maximum frequency of 30–40 impulses per sec when the skin temperature is between 42°C and 45°C. Temperature sensations are produced by the combined excitation of both types of thermoreceptors.