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Physiology

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Central Nervous System

Question
20 out of 22
 

In damage to Preoptic area in hypothalamus



A Hypothermia
B Hyperthermia

C Loss of appetite
D Increase appetite


Ans. B Hyperthermia
  1. Thermoregulatory center is a center located in the HYPOTHALAMUS that regulates heat production especially heat loss. It is found in the anterior portion of the hypothalamus, especially the preoptic area. Damage can lead to hyperthermia.

  1. Primary motor center for shivering is located in the DORSOMEDIAL PORTION OF POSTERIOR HYPOTHALAMUS near the wall of third ventricle.
  2. This area is excited by cold signals from skin and spinal cord and inhibited by signals by heat centers Q from hypothalamus.
  3. During maximum shivering body heat production raises about five times the normal. Q

Central Nervous System Flashcard List

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