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At what temperature range do warm receptors have their strongest steady response?
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Thermoreception
Warm-blooded animals, such as polar bears, maintain stable body temperatures and adapt to substantial geographic and seasonal temperature fluctuations. Thermal adaptation is supported by the function of sensory structures called thermoreceptors.
Warm receptors exhibit their strongest steady (static) response at temperatures ranging from approximately 41–46 °C (106–115 °F).1
These receptors are continuously active at constant temperatures above the neutral skin temperature, which is about 34 °C (93 °F). While they show increased activity as temperatures rise within their functional range, they often become inactive at temperatures exceeding 45 °C (113 °F).1