All of the following occur when the temperature of the preoptic area of the hypothalamus drops below its thermostat setting,except that

Question

Quizplus · Accepted Answer

When the temperature of the preoptic area of the hypothalamus drops below its thermostat setting, shivering thermogenesis and nonshivering thermogenesis occur to generate heat and raise the body temperature. Epinephrine levels may rise as part of the sympathetic nervous system response to this cold stress. Blood returning from the limbs can be shunted to deep veins to conserve heat. However, blood flow to the skin typically decreases during cold exposure to reduce heat loss and conserve body heat. Therefore, the correct answer is A, as blood flow to the skin would not increase in this scenario.

All of the Following Occur When the Temperature of the Preoptic