1. Which part of the nervous system controls voluntary movements?
a) Autonomic nervous system
b) Central nervous system
c) Somatic nervous system
d) Sympathetic nervous system
Answer: c) Somatic nervous system
2. The basic structural and functional unit of the nervous system is:
a) Axon
b) Neuron
c) Dendrite
d) Synapse
Answer: b) Neuron
3. Which part of the neuron receives impulses from other neurons?
a) Axon
b) Dendrite
c) Myelin sheath
d) Node of Ranvier
Answer: b) Dendrite
4. The junction between two neurons is called:
a) Axon terminal
b) Synapse
c) Node of Ranvier
d) Nucleus
Answer: b) Synapse
5. Which type of neuron carries impulses from sensory organs to the CNS?
a) Motor neuron
b) Interneuron
c) Sensory neuron
d) Reflex neuron
Answer: c) Sensory neuron
6. Which part of the brain is responsible for coordination of voluntary movements?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
Answer: b) Cerebellum
7. Which part of the brain controls heart rate and respiration?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Thalamus
Answer: c) Medulla oblongata
8. The gap in the myelin sheath of a neuron is called:
a) Axon hillock
b) Node of Ranvier
c) Synaptic cleft
d) Dendritic spine
Answer: b) Node of Ranvier
9. Which type of neuron connects sensory and motor neurons?
a) Motor neuron
b) Interneuron
c) Sensory neuron
d) Autonomic neuron
Answer: b) Interneuron
10. The outer layer of the cerebrum, responsible for higher brain functions, is called:
a) Medulla
b) Cerebral cortex
c) Hypothalamus
d) Corpus callosum
Answer: b) Cerebral cortex
11. Which nervous system regulates involuntary body functions like digestion?
a) Somatic nervous system
b) Autonomic nervous system
c) Central nervous system
d) Peripheral nervous system
Answer: b) Autonomic nervous system
12. Sympathetic and parasympathetic divisions are part of which system?
a) Central nervous system
b) Peripheral nervous system
c) Autonomic nervous system
d) Somatic nervous system
Answer: c) Autonomic nervous system
13. Which neurotransmitter is primarily responsible for muscle contraction?
a) Dopamine
b) Serotonin
c) Acetylcholine
d) GABA
Answer: c) Acetylcholine
14. The part of the neuron that transmits impulses away from the cell body is:
a) Dendrite
b) Axon
c) Synapse
d) Myelin sheath
Answer: b) Axon
15. Which lobe of the brain is associated with vision?
a) Frontal lobe
b) Parietal lobe
c) Occipital lobe
d) Temporal lobe
Answer: c) Occipital lobe
16. Which lobe of the brain is responsible for hearing?
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Answer: b) Temporal lobe
17. Which structure connects the two hemispheres of the brain?
a) Medulla
b) Corpus callosum
c) Thalamus
d) Pons
Answer: b) Corpus callosum
18. Reflex actions are controlled by:
a) Cerebrum
b) Spinal cord
c) Cerebellum
d) Medulla
Answer: b) Spinal cord
19. Which part of the brain controls body temperature, hunger, and thirst?
a) Hypothalamus
b) Thalamus
c) Cerebellum
d) Medulla
Answer: a) Hypothalamus
20. Which nervous system division prepares the body for “fight or flight”?
a) Parasympathetic
b) Sympathetic
c) Somatic
d) Central
Answer: b) Sympathetic
21. The protective covering around the brain and spinal cord is called:
a) Myelin sheath
b) Meninges
c) Axon
d) Synapse
Answer: b) Meninges
22. The fluid that cushions the brain and spinal cord is:
a) Plasma
b) Lymph
c) Cerebrospinal fluid
d) Interstitial fluid
Answer: c) Cerebrospinal fluid
23. Which neurotransmitter is associated with mood regulation?
a) Acetylcholine
b) Serotonin
c) Dopamine
d) Norepinephrine
Answer: b) Serotonin
24. Which part of the nervous system consists of all nerves outside the brain and spinal cord?
a) Somatic nervous system
b) Autonomic nervous system
c) Peripheral nervous system
d) Central nervous system
Answer: c) Peripheral nervous system
25. The “rest and digest” system is known as:
a) Sympathetic nervous system
b) Parasympathetic nervous system
c) Somatic nervous system
d) Reflex system
Answer: b) Parasympathetic nervous system
26. Which part of the neuron contains the nucleus?
a) Axon
b) Cell body
c) Dendrite
d) Synapse
Answer: b) Cell body
27. Nerve impulse conduction from one neuron to another occurs via:
a) Electrical synapse only
b) Chemical synapse only
c) Both electrical and chemical synapse
d) Axon hillock
Answer: c) Both electrical and chemical synapse
28. The bundle of axons in the CNS is called:
a) Nerve
b) Tract
c) Ganglion
d) Node
Answer: b) Tract
29. The peripheral cluster of neuron cell bodies is called:
a) Nucleus
b) Ganglion
c) Tract
d) Plexus
Answer: b) Ganglion
30. Which part of the brain relays sensory information to the cerebrum?
a) Thalamus
b) Hypothalamus
c) Pons
d) Medulla
Answer: a) Thalamus