Everyday Science

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

Answer
B) Somatic nervous system

What is the basic functional unit of the nervous system?
A) Neuron
B) Axon
C) Dendrite
D) Synapse

Answer
A) Neuron

Which part of the brain controls balance and coordination?
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) Hypothalamus

Answer
B) Cerebellum

Which part of the brain is responsible for higher-order thinking and decision-making?
A) Brainstem
B) Cerebellum
C) Cerebrum
D) Hypothalamus

Answer
C) Cerebrum

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

Answer
B) Speeds up nerve impulses

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

Answer
C) Sympathetic nervous system

Which type of neuron carries impulses from the brain to muscles?
A) Sensory neuron
B) Motor neuron
C) Interneuron
D) Reflex neuron

Answer
B) Motor neuron

What is the gap between two neurons called?
A) Axon
B) Synapse
C) Dendrite
D) Nucleus

Answer
B) Synapse

Which neurotransmitter is associated with mood regulation?
A) Dopamine
B) Acetylcholine
C) Insulin
D) Melatonin

Answer
A) Dopamine

Which part of the brain controls involuntary functions like breathing and heart rate?
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) Thalamus

Answer
C) Medulla oblongata

What part of the brain is responsible for emotions and memory?
A) Cerebellum
B) Limbic system
C) Medulla oblongata
D) Occipital lobe

Answer
B) Limbic system

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

Answer
A) Parkinson’s disease

Which lobe of the brain processes visual information?
A) Parietal lobe
B) Temporal lobe
C) Occipital lobe
D) Frontal lobe

Answer
C) Occipital lobe

Which cells support and protect neurons?
A) Myelin cells
B) Epithelial cells
C) Glial cells
D) Red blood cells

Answer
C) Glial cells

Which part of the neuron receives signals?
A) Axon
B) Dendrite
C) Synapse
D) Soma

Answer
B) Dendrite

Which disorder affects memory and cognitive function due to neuron degeneration?
A) Multiple sclerosis
B) Parkinson’s disease
C) Alzheimer’s disease
D) Epilepsy

Answer
C) Alzheimer’s disease

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

Answer
A) Central nervous system

Which ion is primarily responsible for transmitting nerve impulses?
A) Calcium
B) Sodium
C) Potassium
D) Magnesium

Answer
B) Sodium

Which part of the brain regulates body temperature, hunger, and thirst?
A) Cerebellum
B) Thalamus
C) Hypothalamus
D) Pons

Answer
C) Hypothalamus

Which structure connects the left and right hemispheres of the brain?
A) Cerebellum
B) Corpus callosum
C) Brainstem
D) Thalamus

Answer
B) Corpus callosum

Which type of nerve carries information from sensory organs to the brain?
A) Motor nerve
B) Sensory nerve
C) Interneuron
D) Reflex nerve

Answer
B) Sensory 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

Answer
C) Parasympathetic nervous system

Which part of the neuron transmits signals away from the cell body?
A) Dendrite
B) Synapse
C) Axon
D) Myelin

Answer
C) Axon

Which of the following is NOT part of the peripheral nervous system?
A) Spinal nerves
B) Cranial nerves
C) Brain
D) Sensory neurons

Answer
C) Brain

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

Answer
B) To protect and cushion the brain and spinal cord

Which brain structure acts as a relay station for sensory information?
A) Thalamus
B) Hippocampus
C) Cerebellum
D) Hypothalamus

Answer
A) Thalamus

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

Answer
B) Epilepsy

Which neurotransmitter is primarily responsible for muscle contractions?
A) Dopamine
B) Acetylcholine
C) Serotonin
D) Glutamate

Answer
B) Acetylcholine

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

Answer
C) Multiple sclerosis

Which part of the brain is responsible for speech production?
A) Wernicke’s area
B) Broca’s area
C) Occipital lobe
D) Hypothalamus

Answer
B) Broca’s area

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