VPY-0018
QUESTION
The part of the hypothalamus that regulates body temperature?
OPTIONS
(A) Mammillary body
(B) Supra optic nuclei
(C) Preoptic area
(D) Para/Ventricular nuclei
ANSWER
(C) Preoptic area
EXPLANATION
The preoptic area is the correct option because neurons in the anterior hypothalamic/preoptic region play a major role in detecting core temperature and coordinating heat-loss and heat-production responses. The mammillary body is involved mainly in memory circuits, supraoptic nuclei are important for ADH production, and paraventricular nuclei have major neuroendocrine roles but are not the principal thermoregulatory center named here.