Disorders of Nervous System MCQs with Answers (25 Questions)

The nervous system controls and coordinates all the functions of our body. Sometimes, it may suffer from different disorders such as Alzheimer’s disease, Parkinson’s disease, epilepsy, multiple sclerosis, stroke, and many more.

To help students and exam aspirants, here we have compiled 25 most important multiple-choice questions (MCQs) on disorders of the nervous system with answers. These questions are very useful for entry tests, medical exams, and quick revision.

MCQs on Disorders of Nervous System

1. Which disease is caused by the degeneration of dopamine-producing neurons in the brain?
a) Alzheimer’s disease
b) Parkinson’s disease
c) Epilepsy
d) Stroke
Answer: Parkinson’s disease

2. Alzheimer’s disease primarily affects which part of the brain?
a) Cerebellum
b) Hippocampus
c) Medulla
d) Hypothalamus
Answer: Hippocampus

3. Which of the following is NOT a symptom of Parkinson’s disease?
a) Tremors
b) Muscle rigidity
c) Memory loss
d) Bradykinesia (slowness of movement)
Answer: Memory loss

4. Which disorder is associated with recurrent seizures due to abnormal brain activity?
a) Migraine
b) Epilepsy
c) Schizophrenia
d) Stroke
Answer: Epilepsy

5. Multiple sclerosis (MS) is caused by damage to:
a) Myelin sheath
b) Synaptic cleft
c) Dendrites
d) Neurotransmitters
Answer: Myelin sheath

6. Which of the following is a viral infection that can affect the nervous system and cause paralysis?
a) Polio
b) Tetanus
c) Rabies
d) Meningitis
Answer: Polio

7. Rabies virus affects which part of the body most severely?
a) Heart
b) Brain
c) Lungs
d) Kidneys
Answer: Brain

8. Which nervous system disorder is characterized by memory loss and cognitive decline in elderly people?
a) Alzheimer’s disease
b) Epilepsy
c) Huntington’s disease
d) Migraine
Answer: Alzheimer’s disease

9. Meningitis is the inflammation of:
a) Brain stem
b) Cerebral cortex
c) Meninges
d) Cerebellum
Answer: Meninges

10. Huntington’s disease is a genetic disorder affecting which type of neurons?
a) Motor neurons
b) Sensory neurons
c) Cholinergic neurons
d) Dopaminergic neurons
Answer: Motor neurons

11. Which of the following is an autoimmune disorder of the nervous system?
a) Parkinson’s disease
b) Multiple sclerosis
c) Epilepsy
d) Alzheimer’s disease
Answer: Multiple sclerosis

12. Which toxin causes lockjaw by interfering with neurotransmitter release?
a) Botulinum toxin
b) Tetanus toxin
c) Snake venom
d) Cyanide
Answer: Tetanus toxin

13. Which vitamin deficiency can lead to peripheral neuropathy?
a) Vitamin A
b) Vitamin B12
c) Vitamin D
d) Vitamin K
Answer: Vitamin B12

14. Stroke is caused due to:
a) Excess dopamine
b) Reduced blood supply to the brain
c) Excess acetylcholine
d) Loss of myelin
Answer: Reduced blood supply to the brain

15. Which of the following is a demyelinating disease?
a) Alzheimer’s disease
b) Multiple sclerosis
c) Parkinson’s disease
d) Migraine
Answer: Multiple sclerosis

16. Which condition is also called “Lou Gehrig’s disease”?
a) Multiple sclerosis
b) Amyotrophic lateral sclerosis (ALS)
c) Huntington’s disease
d) Stroke
Answer: Amyotrophic lateral sclerosis (ALS)

17. The main cause of epilepsy is:
a) Viral infection
b) Genetic factors and abnormal brain activity
c) Vitamin deficiency
d) Loss of dopamine
Answer: Genetic factors and abnormal brain activity

18. Which disorder is linked with beta-amyloid plaque accumulation in the brain?
a) Parkinson’s disease
b) Alzheimer’s disease
c) Huntington’s disease
d) Epilepsy
Answer: Alzheimer’s disease

19. Which nervous system disorder is often triggered by light and sound?
a) Migraine
b) Epilepsy
c) Stroke
d) Alzheimer’s disease
Answer: Migraine

20. Guillain-Barré syndrome is characterized by:
a) Rapid muscle weakness caused by immune attack on peripheral nerves
b) Tremors in hands
c) Progressive memory loss
d) Seizures
Answer: Rapid muscle weakness caused by immune attack on peripheral nerves

21. Which disease is associated with progressive loss of motor function due to motor neuron degeneration?
a) ALS
b) Epilepsy
c) Migraine
d) Meningitis
Answer: ALS

22. Which of the following can cause paralysis if left untreated?
a) Polio
b) Parkinson’s disease
c) Migraine
d) Alzheimer’s disease
Answer: Polio

23. Which nervous system disorder often requires L-Dopa treatment?
a) Epilepsy
b) Parkinson’s disease
c) Multiple sclerosis
d) Stroke
Answer: Parkinson’s disease

24. Which infection is transmitted by dog bites and affects the CNS?
a) Polio
b) Rabies
c) Tetanus
d) Meningitis
Answer: Rabies

25. Which of the following is an age-related neurodegenerative disorder?
a) Parkinson’s disease
b) Alzheimer’s disease
c) Both a and b
d) Epilepsy
Answer: Both a and b

Final Words

These MCQs cover the most common and important disorders of the nervous system. Preparing these questions will help you understand topics like Alzheimer’s, Parkinson’s, epilepsy, stroke, multiple sclerosis, and more. Keep practicing for better retention!

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