The Nervous System & Brain MCQs with Answer
Which part of the nervous system controls voluntary movements?
A) Autonomic nervous system
B) Somatic nervous system
C) Sympathetic nervous system
D) Parasympathetic nervous system
What is the basic functional unit of the nervous system?
A) Neuron
B) Axon
C) Dendrite
D) Synapse
Which part of the brain controls balance and coordination?
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) Hypothalamus
Which part of the brain is responsible for higher-order thinking and decision-making?
A) Brainstem
B) Cerebellum
C) Cerebrum
D) Hypothalamus
What is the function of the myelin sheath?
A) Slows down nerve impulses
B) Speeds up nerve impulses
C) Destroys neurotransmitters
D) Connects neurons to blood vessels
Which part of the nervous system prepares the body for “fight or flight”?
A) Parasympathetic nervous system
B) Somatic nervous system
C) Sympathetic nervous system
D) Central nervous system
Which type of neuron carries impulses from the brain to muscles?
A) Sensory neuron
B) Motor neuron
C) Interneuron
D) Reflex neuron
What is the gap between two neurons called?
A) Axon
B) Synapse
C) Dendrite
D) Nucleus
Which neurotransmitter is associated with mood regulation?
A) Dopamine
B) Acetylcholine
C) Insulin
D) Melatonin
Which part of the brain controls involuntary functions like breathing and heart rate?
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) Thalamus
What part of the brain is responsible for emotions and memory?
A) Cerebellum
B) Limbic system
C) Medulla oblongata
D) Occipital lobe
Which nervous system disorder is characterized by the loss of dopamine-producing neurons?
A) Parkinson’s disease
B) Alzheimer’s disease
C) Epilepsy
D) Multiple sclerosis
Which lobe of the brain processes visual information?
A) Parietal lobe
B) Temporal lobe
C) Occipital lobe
D) Frontal lobe
Which cells support and protect neurons?
A) Myelin cells
B) Epithelial cells
C) Glial cells
D) Red blood cells
Which part of the neuron receives signals?
A) Axon
B) Dendrite
C) Synapse
D) Soma
Which disorder affects memory and cognitive function due to neuron degeneration?
A) Multiple sclerosis
B) Parkinson’s disease
C) Alzheimer’s disease
D) Epilepsy
Which part of the nervous system includes the brain and spinal cord?
A) Central nervous system
B) Peripheral nervous system
C) Autonomic nervous system
D) Somatic nervous system
Which ion is primarily responsible for transmitting nerve impulses?
A) Calcium
B) Sodium
C) Potassium
D) Magnesium
Which part of the brain regulates body temperature, hunger, and thirst?
A) Cerebellum
B) Thalamus
C) Hypothalamus
D) Pons
Which structure connects the left and right hemispheres of the brain?
A) Cerebellum
B) Corpus callosum
C) Brainstem
D) Thalamus
Which type of nerve carries information from sensory organs to the brain?
A) Motor nerve
B) Sensory nerve
C) Interneuron
D) Reflex nerve
Which nervous system is responsible for rest and digestion?
A) Sympathetic nervous system
B) Somatic nervous system
C) Parasympathetic nervous system
D) Peripheral nervous system
Which part of the neuron transmits signals away from the cell body?
A) Dendrite
B) Synapse
C) Axon
D) Myelin
Which of the following is NOT part of the peripheral nervous system?
A) Spinal nerves
B) Cranial nerves
C) Brain
D) Sensory neurons
What is the function of cerebrospinal fluid?
A) To transmit electrical signals
B) To protect and cushion the brain and spinal cord
C) To transport oxygen to the brain
D) To remove dead neurons
Which brain structure acts as a relay station for sensory information?
A) Thalamus
B) Hippocampus
C) Cerebellum
D) Hypothalamus
Which nervous system disorder is characterized by sudden, uncontrolled electrical activity in the brain?
A) Parkinson’s disease
B) Epilepsy
C) Alzheimer’s disease
D) Multiple sclerosis
Which neurotransmitter is primarily responsible for muscle contractions?
A) Dopamine
B) Acetylcholine
C) Serotonin
D) Glutamate
Which nervous system disorder results from the immune system attacking the protective covering of nerves?
A) Alzheimer’s disease
B) Parkinson’s disease
C) Multiple sclerosis
D) Epilepsy
Which part of the brain is responsible for speech production?
A) Wernicke’s area
B) Broca’s area
C) Occipital lobe
D) Hypothalamus