Which subcortical brain structure acts as the central regulator for core body temperature, appetite, thirst, and neuroendocrine hormone synthesis?

Answer and explanation

Correct answer: D. Hypothalamus

  1. Step 1: The hypothalamus is situated at the base of the thalamus and forms the ventral part of the diencephalon.
  2. Step 2: It contains vital autonomic nuclei that act as the master thermostat of the body, regulating body temperature, circadian rhythms, hunger, satiety, thirst, and osmolarity.
  3. Step 3: In addition, it contains neurosecretory cells that synthesize releasing and inhibiting hormones controlling the anterior pituitary gland, as well as oxytocin and vasopressin stored in the posterior pituitary.
Answer
Hypothalamus
Why not the others: 'Thalamus' is the major relay station for sensory and motor signals projecting to the cerebral cortex; 'Cerebellum' coordinates balance, posture, and fine motor execution; 'Medulla oblongata' houses centers controlling cardiovascular and respiratory vegetative functions.

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