Quiz on The Human Nervous System
The human nervous system is the body’s control and communication network. It coordinates all voluntary and involuntary actions by transmitting signals between different body parts. The nervous system is divided into two main parts:
1. Central Nervous System (CNS) — includes the brain and spinal cord.
2. Peripheral Nervous System (PNS) — includes nerves that connect the CNS to limbs and organs.
It controls functions such as thought, movement, sensation, and heartbeat through a complex network of neurons that transmit electrical impulses rapidly.
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MCQ Questions on Quiz on The Human Nervous System
Q. What are the two main parts of the human nervous system?
A. Brain and heart
B. Central and peripheral nervous systems
C. Cranial and spinal nerves
D. Somatic and autonomic systems
Correct: Option (B)
Explanation: The nervous system is divided into the central nervous system and the peripheral nervous system.
Q. Which organ is known as the control center of the body?
A. Heart
B. Brain
C. Lungs
D. Kidney
Correct: Option (B)
Explanation: The brain controls and coordinates all body functions, making it the control center of the body.
Q. What is the functional unit of the nervous system?
A. Neuron
B. Axon
C. Dendrite
D. Synapse
Correct: Option (A)
Explanation: Neurons are specialized cells that transmit nerve impulses throughout the body.
Q. Which part of the brain controls balance and coordination?
A. Cerebrum
B. Cerebellum
C. Medulla oblongata
D. Thalamus
Correct: Option (B)
Explanation: The cerebellum helps maintain body balance and coordinate muscle movements.
Q. Which part of the brain controls breathing and heartbeat?
A. Cerebrum
B. Medulla oblongata
C. Pons
D. Cerebellum
Correct: Option (B)
Explanation: The medulla oblongata regulates vital functions like breathing and heart rate.
Q. Which type of neuron carries messages from the body to the brain?
A. Motor neuron
B. Sensory neuron
C. Relay neuron
D. Interneuron
Correct: Option (B)
Explanation: Sensory neurons transmit signals from sensory organs to the central nervous system.
Q. What protects the brain and spinal cord?
A. Muscles
B. Bones and cerebrospinal fluid
C. Skin and tissues
D. Veins and arteries
Correct: Option (B)
Explanation: The skull and vertebral column protect the CNS, while cerebrospinal fluid cushions it.
Q. What connects the brain to the rest of the body?
A. Heart
B. Spinal cord
C. Kidney
D. Liver
Correct: Option (B)
Explanation: The spinal cord connects the brain to the peripheral nerves of the body.
Q. Which part of the brain controls intelligence and memory?
A. Cerebrum
B. Cerebellum
C. Pons
D. Medulla oblongata
Correct: Option (A)
Explanation: The cerebrum is responsible for intelligence, memory, learning, and voluntary actions.
Q. Which nervous system controls involuntary actions like heartbeat?
A. Central nervous system
B. Autonomic nervous system
C. Peripheral nervous system
D. Somatic nervous system
Correct: Option (B)
Explanation: The autonomic nervous system regulates involuntary functions like heartbeat and digestion.