Nervous System MCQs

1. : Which part of the brain is responsible for regulating vital functions such as heartbeat and breathing?
(A) Cerebrum
(B) Cerebellum
(C) Medulla oblongata
(D) Thalamus

2. : What is the primary function of the myelin sheath?
(A) To transmit electrical impulses
(B) To protect the neuron from damage
(C) To increase the speed of impulse transmission
(D) To store neurotransmitters

3. : Which type of neuron carries sensory information from the peripheral nervous system to the central nervous system?
(A) Motor neuron
(B) Interneuron
(C) Sensory neuron
(D) Efferent neuron

4. : Which part of the brain is involved in higher cognitive functions, such as reasoning, planning, and problem-solving?
(A) Limbic system
(B) Brainstem
(C) Cerebrum
(D) Cerebellum

5. : Which neurotransmitter is primarily associated with mood regulation and is often targeted by antidepressant medications?
(A) Acetylcholine
(B) Dopamine
(C) Serotonin
(D) Norepinephrine

6. : What is the name of the structure that connects the left and right hemispheres of the brain?
(A) Corpus callosum
(B) Pineal gland
(C) Thalamus
(D) Hippocampus

7. : Which type of glial cell is responsible for forming the blood-brain barrier?
(A) Astrocyte
(B) Oligodendrocyte
(C) Microglia
(D) Schwann cell

8. : What is the name of the fluid that surrounds the brain and spinal cord, providing cushioning and protection?
(A) Synovial fluid
(B) Cerebrospinal fluid (CSF)
(C) Lymphatic fluid
(D) Interstitial fluid

9. : Which cranial nerve is responsible for the sense of smell?
(A) Optic nerve
(B) Vagus nerve
(C) Olfactory nerve
(D) Facial nerve

10. : What is the primary role of the autonomic nervous system?
(A) To control voluntary movements
(B) To regulate unconscious bodily functions
(C) To process sensory information
(D) To coordinate muscle contractions

11. : Which part of the nervous system controls the “fight or flight” response?
(A) Sympathetic nervous system
(B) Parasympathetic nervous system
(C) Somatic nervous system
(D) Enteric nervous system

12. : Which structure in the brain is primarily involved in coordinating voluntary muscle movements and maintaining balance?
(A) Cerebellum
(B) Hypothalamus
(C) Hippocampus
(D) Pons

13. : What is the primary function of the somatic nervous system?
(A) To control involuntary bodily functions
(B) To regulate emotional responses
(C) To control voluntary movements of skeletal muscles
(D) To process sensory information from internal organs

14. : Which of the following structures is involved in memory formation and spatial navigation?
(A) Amygdala
(B) Hippocampus
(C) Thalamus
(D) Hypothalamus

15. : Which part of the nervous system is responsible for relaying sensory and motor signals between the brain and the rest of the body?
(A) Spinal cord
(B) Peripheral nervous system
(C) Brainstem
(D) Corpus callosum