Narcolepsy is due to the abnormality in mcq given below:
Q. Narcolepsy is due to the abnormality in(a) hypothalamus / |
| Do you Agree with Answer comment below |
Rationale: Narcolepsy
Narcolepsy is a sleep-related neurological disorder in which a person experiences sudden and uncontrollable episodes of sleep during the day.
In this condition, the person falls asleep without warning, whether they are reading, talking, or working. This condition significantly impacts the patient’s daily life.
The main cause of narcolepsy is a dysfunction in the hypothalamus.
The hypothalamus contains a neurotransmitter called Hypocretin (Orexin), which regulates the sleep–wake cycle.
When the amount of Hypocretin decreases, the person develops symptoms of narcolepsy. Therefore, abnormality of the hypothalamus is considered its primary cause.
Why not other structures?
The Neocortex is primarily involved in thinking, memory, and decision-making, not sleep regulation.
The Cerebellum controls balance and coordination of the body. It is not directly related to narcolepsy.
The Medulla oblongata controls life-sustaining functions such as respiration and heart rate, but not the sleep–wake cycle.
✅ Exam Point:
The main cause of
Narcolepsy is
➤ abnormality of the Hypothalamus.
This topic is frequently asked in
anatomy, physiology, and psychiatric nursing.
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