The temperature control center within the posterior region of the hypothalamus i

Question

The temperature control center within the posterior region of the hypothalamus is activated by _____ and initiates reflexes that mediate _____. A. cold, decrease non-shivering thermogenesis B. warmth, decrease in skeletal muscle contractions C. cold, increase in skeletal muscle contractions D. warmth, vasodilation of cutaneous vessels For questions 2-4, use the terms in A, B and C to describe the mechanism of heat loss observed in each scenario. Each term may be used only once. Sitting on a cold seat in Folsom Field watching the Buffs beat the Rams in football Standing next to Boulder creek on a cold winter day Walking outside on a hot, dry, windy summer day A. Radiation B. Convection C. Conduction

Explanation / Answer

1) The temperature control center within the posterior region of the hypothalamus is activated by COLD and initiates reflexes that mediated by decrease non-shivering thermogenesis .A.

Centers in hypothalamus for temperature regulation

2. Sitting on a cold seat in Folsom Field watching the Buffs beat the Rams in football-conduction.

3. Standing next to Boulder creek on a cold winter day -radiation.

4. Walking outside on a hot, dry, windy summer day - Convection .

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