MRCP UK EXAMINATIONS

NEUROLOGY

SURGERY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The sleep-wake cycle regulator and the site of the hunger center is known as the ____
A
thalamus
B
hypothalamus
C
pituitary
D
temporal
Explanation: 

Detailed explanation-1: -The hypothalamus is a small area in the center of the brain. It helps produce hormones that regulate heart rate, body temperature, hunger, and the sleep-wake cycle. When the hypothalamus is not working properly, it can cause problems in the body that lead to a wide range of rare disorders.

Detailed explanation-2: -The ventromedial nuclei is the satiety center, and when stimulated, it causes the sensation of fullness. On the other hand, the lateral hypothalamic area is the feeding center and when stimulated, it causes the sensation of hunger.

Detailed explanation-3: -The hypothalamus, a peanut-sized structure deep inside the brain, contains groups of nerve cells that act as control centers affecting sleep and arousal.

Detailed explanation-4: -Sleep is one of the most important physiological functions in mammals. It is regulated by not only homeostatic regulation but also circadian clock. Several neuropeptide-producing neurons located in the hypothalamus are implicated in the regulation of sleep/wakefulness.

There is 1 question to complete.