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

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

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