Heating tissues beyond which temperature is commonly associated with pain?

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Study for the Physiology of Heat and Cold Test with insightful flashcards and multiple-choice questions. Each question offers hints and explanations. Prepare effectively for your exam!

Multiple Choice

Heating tissues beyond which temperature is commonly associated with pain?

Explanation:
Heat detected by the body's nociceptors has a higher threshold than ordinary warmth. Warmth up to about 40°C is usually comfortable, but once temperatures rise into the low to mid-40s, pain typically begins as heat-sensitive pain fibers activate. As you push beyond about 45°C, the stimulus is reliably painful and the risk of tissue damage increases because proteins start to denature and cells sustain injury. So heating tissue beyond 45°C is commonly associated with pain.

Heat detected by the body's nociceptors has a higher threshold than ordinary warmth. Warmth up to about 40°C is usually comfortable, but once temperatures rise into the low to mid-40s, pain typically begins as heat-sensitive pain fibers activate. As you push beyond about 45°C, the stimulus is reliably painful and the risk of tissue damage increases because proteins start to denature and cells sustain injury. So heating tissue beyond 45°C is commonly associated with pain.

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