Question

Which centre is stimulated during increase in body temperature?

• A. Anterior hypothalamus
• B. Posterior hypothalamus
• C. Limbic system
• D. Red nucleus

Answer 1

The correct option is A Anterior hypothalamus

• Hypothalamus can be distinguished into three parts:

1. Anterior hypothalamus: This region is involved in controlling body functions like circadian rhythms, thermoregulation (control of body temperature), sweating etc.

2. Middle hypothalamus: The middle part of hypothalamus is also known as tuberal component. This region is involved in the regulation of blood pressure, gastrointestinal functions, heart rate etc.

3. Posterior hypothalamus: This region regulates sleep, memory, learning etc.

• The limbic system is present on both sides of thalamus beneath the cerebrum. It is mainly involved in regulation of functions like emotions, thinking and stimulation.

• Red nucleus is a structure made up of group of cells and is present in the tegmentum of midbrain and is involved in regulation of muscle activities.

So, the correct answer is option 'Anterior hypothalamus'.