Q.

Which is the gland that holds the body's thermostat?

A. Pineal
B. Pituitary
C. Thyroid
D. Hypothalamus
Answer» D. Hypothalamus
Explanation: The body keeps its core temperature constant at about 37 C by physiological adjustments controlled by the hypothalamus (Thermostat Center) where there are neurons sensitive to changes in skin and blood temperatures. The temperature-regulating centers are found in the Preoptic Area (the anteriorportion of the hypothalamus). This area receives input from temperature receptors in the skin and mucous membranes (Peripheral Thermoreceptors) and from internal structures(Central Thermoreceptors), which include the hypothalamus itself.

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Biology (GK)

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