A patient with a hypothalamic lesion is exposed to a 45°C (113°F) environment. Why does the patient's body temperature rise rapidly, despite profuse sweating?

💡 Explanation

The hypothalamic lesion impairs the body's thermoregulatory set point, causing it to misinterpret the body's temperature, because the hypothalamus coordinates responses like sweating to maintain the correct temperature. Therefore, the set point disruption overrides thermoregulation signals, rather than insufficient sweat production or inappropriate vasoconstriction.

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