The human nervous system is an important part of our body. It helps us in the communication networks, carrying messages from the brain and spinal cord to the rest of the body. This topic is very important from the exam point of view. It is very important to know what the nervous system is, how it works, and what its components are. To know how much you know about the topic, practicing MCQs is a good way. We have arrived with 25 simple and unique MCQs on the human nervous system with correct answers.
- Which part of the nervous system controls all voluntary and involuntary actions in our body every day?
(A) Heart
(B) Brain
(C) Kidney
(D) Lungs
Correct Answer: (B) Brain - Which organ is protected inside the skull and acts as the main control center of the body?
(A) Brain
(B) Stomach
(C) Liver
(D) Kidney
Correct Answer: (A) Brain - In the nervous system, what carries messages from the brain to the whole body and back?
(A) Spinal Cord
(B) Heart
(C) Lungs
(D) Kidney
Correct Answer: (A) Spinal Cord - Which type of nerves connect the brain and spinal cord with muscles, organs, and skin properly?
(A) Sensory Nerves
(B) Cranial and Spinal Nerves
(C) Digestive Nerves
(D) Motor Nerves
Correct Answer: (B) Cranial and Spinal Nerves - Which part of the brain controls our thinking, memory, emotions, learning, and decision-making power?
(A) Cerebellum
(B) Cerebrum
(C) Medulla
(D) Spinal Cord
Correct Answer: (B) Cerebrum - In the brain, which part maintains the balance of the body and helps in the smooth coordination of movement?
(A) Cerebellum
(B) Cerebrum
(C) Medulla Oblongata
(D) Pons
Correct Answer: (A) Cerebellum - Which lower part of the brain controls heartbeat, breathing, digestion, and other involuntary actions?
(A) Medulla Oblongata
(B) Cerebrum
(C) Cerebellum
(D) Spinal Cord
Correct Answer: (A) Medulla Oblongata - Which nerve cells are the basic structural and functional units of the nervous system in humans?
(A) Neurons
(B) Bones
(C) Muscles
(D) Ligaments
Correct Answer: (A) Neurons - Which part of the neuron receives signals from other neurons and passes them to the cell body?
(A) Axon
(B) Dendrites
(C) Myelin
(D) Synapse
Correct Answer: (B) Dendrites - Which long part of the neuron carries messages away from the cell body to other parts?
(A) Dendrites
(B) Axon
(C) Myelin
(D) Nucleus
Correct Answer: (B) Axon - Which covering around the axon helps to increase the speed of nerve impulse transmission?
(A) Myelin Sheath
(B) Skin
(C) Membrane
(D) Bone
Correct Answer: (A) Myelin Sheath - Which gap between two neurons allows messages to pass from one neuron to another neuron?
(A) Synapse
(B) Axon
(C) Dendrite
(D) Cell Body
Correct Answer: (A) Synapse - Which type of nerves carry messages from sense organs to the brain for understanding?
(A) Sensory Nerves
(B) Motor Nerves
(C) Mixed Nerves
(D) Cardiac Nerves
Correct Answer: (A) Sensory Nerves - Which type of nerves carry orders from the brain and spinal cord to muscles and organs?
(A) Sensory Nerves
(B) Motor Nerves
(C) Mixed Nerves
(D) Cranial Nerves
Correct Answer: (B) Motor Nerves - What is the name of the part of the nervous system that controls automatic functions like heartbeat, breathing, and digestion?
(A) Autonomic Nervous System
(B) Central Nervous System
(C) Peripheral Nervous System
(D) Skeletal System
Correct Answer: (A) Autonomic Nervous System - What is the name of the part of the nervous system that includes the brain and spinal cord as main components?
(A) Central Nervous System
(B) Autonomic Nervous System
(C) Peripheral Nervous System
(D) Circulatory System
Correct Answer: (A) Central Nervous System - In the nervous system, which part connects the central nervous system to the rest of the body?
(A) Peripheral Nervous System
(B) Digestive System
(C) Autonomic System
(D) Circulatory System
Correct Answer: (A) Peripheral Nervous System - Which part of the autonomic nervous system prepares the body for an emergency fight-or-flight response?
(A) Parasympathetic System
(B) Sympathetic System
(C) Spinal Cord
(D) Cerebrum
Correct Answer: (B) Sympathetic System - What is the name of the part of the autonomic nervous system that helps the body relax and save energy after stress?
(A) Sympathetic System
(B) Parasympathetic System
(C) Cerebellum
(D) Medulla
Correct Answer: (B) Parasympathetic System - In the human body, which fluid surrounds the brain and spinal cord to protect them from injury or shock?
(A) Blood
(B) Cerebrospinal Fluid
(C) Lymph
(D) Plasma
Correct Answer: (B) Cerebrospinal Fluid - What is the name of the part of the brain that helps in controlling emotions like anger, fear, happiness, and sadness?
(A) Limbic System
(B) Cerebellum
(C) Pons
(D) Medulla
Correct Answer: (A) Limbic System - Which part of the brain works like a switchboard, sending signals to different brain regions?
(A) Thalamus
(B) Cerebrum
(C) Hypothalamus
(D) Pons
Correct Answer: (A) Thalamus - Which part of the brain controls hunger, thirst, body temperature, and sleep patterns in humans?
(A) Hypothalamus
(B) Cerebrum
(C) Cerebellum
(D) Medulla
Correct Answer: (A) Hypothalamus - Which protective layer covers the brain and spinal cord and provides support and safety?
(A) Meninges
(B) Membrane
(C) Myelin
(D) Dermis
Correct Answer: (A) Meninges - Which sense organ works closely with the nervous system by sending signals of light to the brain?
(A) Eyes
(B) Nose
(C) Tongue
(D) Skin
Correct Answer: (A) Eyes