Nervous System MCQ Quiz - Objective Question with Answer for Nervous System - Download Free PDF

The nervous System in Human Body is command house of the body. It originates from mind and connects all organs. Nervous system controls our body’s sensing power, muscle power, reaction and reflections, digestion and other body functions. It gives our body a livelihood and growth. Nervous system may be affected by diseases, accidents, etc because nervous system is interconnected if even any one part of body does not work properly, nervous system efficiency will be decreased. Questions based on nervous system are asked in various National and State level exams. To answer Nervous system based questions, we should have basic knowledge of our body and its working. It is easily understood that our mind controls our all body activity with the help of nervous system. Questions come direct from this topic if you don't know the answer, then first try to eliminate the irrelevant options and analyze the rest options. To get mastery on this topic you can prefer testbook super coaching course. The following questions, based on latest pattern are given for practice at Testbook.

Latest Nervous System MCQ Objective Questions

Nervous System Question 1:

Number of spinal nerves in human are

1. 11 pairs
2. 27 pairs
3. 32 pairs
4. 31 pairs

Answer (Detailed Solution Below)

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Nervous System Question 1 Detailed Solution

Key Points

• The human body has a total of 31 pairs of spinal nerves.
• These nerves are part of the peripheral nervous system and emerge from the spinal cord.
• Spinal nerves are responsible for transmitting motor, sensory, and autonomic signals between the spinal cord and the body.
• Each pair of spinal nerves corresponds to a specific segment of the spinal cord.
• They are categorized into cervical, thoracic, lumbar, sacral, and coccygeal nerves.

Additional Information

• The cervical nerves consist of 8 pairs and are labeled C1 to C8.
• The thoracic nerves consist of 12 pairs and are labeled T1 to T12.
• The lumbar nerves consist of 5 pairs and are labeled L1 to L5.

Nervous System Question 2:

1. Hind-brain
2. Cerebrum
3. Mid-brain
4. More than one of the above
5. None of the above

Answer (Detailed Solution Below)

Nervous System Question 2 Detailed Solution

The correct answer is Cerebrum .

Explanation:

• The main thinking part of the human brain is the cerebrum.
• The cerebrum is the large outer part of the brain
• It controls reading, thinking, learning, speech, emotions, and planned muscle movements like walking.
• The cerebrum (a major part of the forebrain) is the main thinking part of the brain . It has sensory, motor, and association areas.

Additional Information

• The human brain is divided into three parts or compartments with different functions: Fore-brain, Midbrain, and hindbrain .
• The human brain with the spinal cord makes the central nervous system .
• Fore-brain is the main thinking part and controls voluntary actions .
  • It processes sensory information which is collected from various organs of the body such as ears, eyes, nose tongue, skin, etc.
  • The forebrain consists of Cerebrum, thalamus, and hypothalamus .
  • The cerebrum is the biggest part of the brain and is associate with the higher function of thinking and actions.

  Midbrain is a small central part of the brainstem , developing from the middle of the primitive or embryonic brain, the hypothalamus is a portion of the brain

  • It contains a number of small nuclei with a variety of functions, and the lower part of the brainstem, comprises the cerebellum, pons, and medulla oblongata .
  • Midbrain connects the forebrain and hindbrain.
  • It is a bridge to transmit signals .
  • The functions are vision, hearing, temperature regulation, and alertness, etc.
  • the cerebellum is part of the hindbrain.
  • It is maintaining equilibrium, body balance, and posture during walking, riding, etc.

  

  

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  Nervous System Question 3:

  The junction between two nerve cells is known as?
  1. Corpus
  2. Synapse
  3. Tendon
  4. More than one of the above
  5. None of the above

  Answer (Detailed Solution Below)

  Option 2 : Synapse

  Nervous System Question 3 Detailed Solution

  • The junction between two nerve cells is known as the Synapse.
  • The information is passed between two nerve cells through synapse in the form of chemical or electrical signals.
  • At a synapse, the plasma membrane of the signal-passing neuron comes into the close with the membrane of the target cell.
  • A synaptic connection between a neuron and a muscle cell is known as a neuromuscular junction.
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  Nervous System Question 4:

  Comprehension:

  Direction: Read the given passage and answer the following questions. Control and coordination are essential functions in living organisms that ensure proper response to stimuli and maintain homeostasis. In animals, the nervous system and endocrine system work together to regulate body functions. The nervous system uses neurons to transmit electrical signals rapidly across the body, enabling quick responses. It consists of the central nervous system (CNS), including the brain and spinal cord, and the peripheral nervous system (PNS), which comprises nerves extending throughout the body. The endocrine system, on the other hand, involves glands that secrete hormones into the bloodstream. These hormones act as chemical messengers, regulating processes such as growth, metabolism, and reproduction over a longer period.

  Histamine is which type of neurotransmitters
  1. Amino acids neurotransmitters
  2. Monoamines neurotransmitters
  3. Peptide neurotransmitters
  4. None of these

  Answer (Detailed Solution Below)

  Option 2 : Monoamines neurotransmitters

  Nervous System Question 4 Detailed Solution

  The Correct answer is Monoamines neurotransmitters.

  

  Key Points

  Monoamine Neurotransmitters:

  • Monoamines perform various functions in the nervous system, especially in the brain.
  • They regulate consciousness, cognition, attention, and emotion.
  • Many nervous system disorders involve abnormalities in monoamine neurotransmitters, and numerous drugs target these neurotransmitters.
    • Serotonin:
      • ​An inhibitory neurotransmitter that helps regulate mood, sleep patterns, sexuality, anxiety, appetite, and pain.
      • Imbalances are associated with seasonal affective disorder, anxiety, depression, fibromyalgia, and chronic pain.
      • Medications such as selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs) are used to manage these conditions.
      • ​`This neurotransmitter regulates wakefulness, feeding behavior, and motivation and plays a role in asthma, bronchospasm, mucosal edema, and multiple sclerosis.
      • ​Dopamine contributes to the body's reward system, enhancing feelings of pleasure, arousal, and learning.
      • It also aids in focus, concentration, memory, sleep, mood, and motivation.
      • Dysfunction in the dopamine system is linked to Parkinson's disease, schizophrenia, bipolar disorder, restless legs syndrome, and attention deficit hyperactivity disorder (ADHD).
      • Many addictive drugs act on the dopamine system.
      • Both are involved in the "fight-or-flight" response, increasing heart rate, breathing, blood pressure, blood sugar, and blood flow to muscles while enhancing attention and focus.
      • Excessive epinephrine can lead to high blood pressure, diabetes, and heart disease.
      • Epinephrine is also used therapeutically to treat conditions such as anaphylaxis, asthma attacks, cardiac arrest, and severe infections.

      

      Additional Information

      • Amino Acid Neurotransmitters:
        • Glutamate
        • Gamma-Aminobutyric Acid (GABA)
        • Glycine
        • Endorphins:
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        Nervous System Question 5:

        Comprehension:

        Direction: Read the given passage and answer the following questions. Control and coordination are essential functions in living organisms that ensure proper response to stimuli and maintain homeostasis. In animals, the nervous system and endocrine system work together to regulate body functions. The nervous system uses neurons to transmit electrical signals rapidly across the body, enabling quick responses. It consists of the central nervous system (CNS), including the brain and spinal cord, and the peripheral nervous system (PNS), which comprises nerves extending throughout the body. The endocrine system, on the other hand, involves glands that secrete hormones into the bloodstream. These hormones act as chemical messengers, regulating processes such as growth, metabolism, and reproduction over a longer period.

        Which neurotransmitter is primarily involved in the transmission of impulses across a synapse?
        1. Serotonin
        2. Dopamine
        3. Acetylcholine
        4. GABA

        Answer (Detailed Solution Below)

        Option 3 : Acetylcholine

        Nervous System Question 5 Detailed Solution

        The Correct answer is Acetylcholine.

        

        Key Points

        • The neurotransmitter primarily involved in the transmission of impulses across a synapse is Acetylcholine.

        Acetylcholine and Synaptic Transmission:​

        • Role in Synaptic Transmission: Acetylcholine (ACh) is one of the most important neurotransmitters involved in the transmission of nerve impulses across synapses, particularly at neuromuscular junctions and in the autonomic nervous system.
        • Mechanism: When an electrical impulse reaches the presynaptic terminal of a neuron, acetylcholine is released into the synaptic cleft. It then binds to receptors on the postsynaptic membrane, leading to the transmission of the signal to the next neuron or muscle cell.

        

        Additional Information

        • Serotonin: While serotonin is involved in regulating mood, sleep, and appetite, it is not the primary neurotransmitter for the transmission of impulses across synapses .
        • Dopamine: Dopamine is crucial for reward and motivation pathways, and motor control, but it is not the primary neurotransmitter at most synapses.
        • GABA: Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the central nervous system, which means it helps to reduce neuronal excitability rather than primarily transmitting impulses across synapses
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        Top Nervous System MCQ Objective Questions

        Nervous System Question 6

        Which of the following is the main thinking part of the human brain?
        1. Hind-brain
        2. Cerebrum
        3. Mid-brain
        4. None of the above

        Answer (Detailed Solution Below)

        Option 2 : Cerebrum

        Nervous System Question 6 Detailed Solution

        The correct answer is Cerebrum .

        Explanation:

        • The main thinking part of the human brain is the cerebrum.
        • The cerebrum is the large outer part of the brain
        • It controls reading, thinking, learning, speech, emotions, and planned muscle movements like walking.
        • The cerebrum (a major part of the forebrain) is the main thinking part of the brain . It has sensory, motor, and association areas.

        

        Additional Information

        • The human brain is divided into three parts or compartments with different functions: Fore-brain, Midbrain, and hindbrain .
        • The human brain with the spinal cord makes the central nervous system .
        • Fore-brain is the main thinking part and controls voluntary actions .
          • It processes sensory information which is collected from various organs of the body such as ears, eyes, nose tongue, skin, etc.
          • The forebrain consists of Cerebrum, thalamus, and hypothalamus .
          • The cerebrum is the biggest part of the brain and is associate with the higher function of thinking and actions.

          Midbrain is a small central part of the brainstem , developing from the middle of the primitive or embryonic brain, the hypothalamus is a portion of the brain

          • It contains a number of small nuclei with a variety of functions, and the lower part of the brainstem, comprises the cerebellum, pons, and medulla oblongata .
          • Midbrain connects the forebrain and hindbrain.
          • It is a bridge to transmit signals .
          • The functions are vision, hearing, temperature regulation, and alertness, etc.
          • the cerebellum is part of the hindbrain.
          • It is maintaining equilibrium, body balance, and posture during walking, riding, etc.

          

          

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          Nervous System Question 7

          ______ controls involuntary activities like coughing and sneezing.
          1. Medulla
          2. Cerebrum
          3. Pons
          4. Cerebellum

          Answer (Detailed Solution Below)

          Option 1 : Medulla

          Nervous System Question 7 Detailed Solution

          The correct answer is Medulla.

          

          Key Points

          • The medulla is the lowest part of the brain and the lowest portion of the brainstem.
          • The medulla is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord.
          • The medulla plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration.

          

          

          Additional Information

          Parts of Brain	Functions
          Cerebrum	Sensory processing, Language, and communication, Learning and memory
          Cerebellum	Posture, balance, coordination, and speech, resulting in smooth and balanced muscular activity.
          Brain Stem	Cardiac and respiratory functions.

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          Nervous System Question 8

          Dendrites and Axon are parts of which cell?
          1. Red blood cell
          2. Neuron
          3. Nephron
          4. White blood cell

          Answer (Detailed Solution Below)

          Option 2 : Neuron

          Nervous System Question 8 Detailed Solution

          The Correct Answer is Option 2 i.e Neuron.

          • Neurons, also known as nerve cells, send and receive signals from the brain.
          • A neuron has 3 parts: the dendrites, the cell body (also called the "soma"), the axon.'
            • Dendrites - It takes information to the cell body.
            • Cell body (soma) - the part of the cell that contains the nucleus.
            • Axon - It takes information away from the cell body.

            

            • The functional unit of the Kidney is the nephron.
            • Red blood cells also called erythrocytes.
            • Red blood cells help in carrying oxygen throughout the body.
            • Hemoglobin is a pigment in the red blood cells which gives the cells their red color.
            • White blood cells (WBCs) are also called leukocytes.
            • These help in protecting the body against foreign invaders.

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            Nervous System Question 9

            Centre for heat, touch, cold and pressure are in
            1. Frontal lobe
            2. Occipital lobe
            3. Parietal lobe
            4. Frontal as well as occipital lobe both

            Answer (Detailed Solution Below)

            Option 3 : Parietal lobe

            Nervous System Question 9 Detailed Solution

            The correct answer is Parietal lobe.

            

            Important Points

            • Parietal lobe:
              • Located behind the frontal lobe.
              • Receive and transmit sensory information from the body and skin. Also connected other parts of the brain.
              • Deals with many sensations including touch, pressure, pain, heat, cold, etc.
              • It is the largest part of four major lobes, located at the front of each hemisphere(brain’s cerebral cortex) and covered by the frontal cortex.
              • The frontal lobe is separated from the parietal lobe by the central sulcus.
              • The major role of the frontal lobe is decision makingincluding self-management, Speech, and language, Comparing objects, memories, understanding, and reacting to feelings, behaviour, attention, etc.
              • It is the smallest of the lobes, located at the back portion of the brain and below the occipital bone.
              • The primary visual cortex, which is located in the occipital lobe, receives and interprets information from the retinas of the eyes.
              • The occipital lobe deals with aspects of vision, including face recognition, movement, object recognition, colour determination, distance, depth perception.
              • Located in the bottom section of the brainand sitting close to the ear level within the skull.
              • The major functions are hearing, language recognization, speaking and understanding writing, memory acquisition, visual perception, etc.

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              Nervous System Question 10

              Which part of the brain controls the heart?
              1. Spinal Cord
              2. Medulla Oblongata
              3. Neuron
              4. None of these

              Answer (Detailed Solution Below)

              Option 2 : Medulla Oblongata

              Nervous System Question 10 Detailed Solution

              Concept-

              • Human brain is the central organ of the human nervous system
              • The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain.
              • The brainstem network controls blood pressure
              • Brain stem include
                • Medulla oblongata
                • Pons
                • Mid brain

                

                Key Points

                Fore-brain:

                • The forebrain structures include the cerebrum, thalamus, hypothalamus, pituitary gland.
                • Cerebral hemispheres make up the uppermost portion of the brain and are involved in sensory mecahnism, control of voluntary movement, such as speech .
                • The thalamus is the main relay centre between the medulla oblongata and thecerebrum.
                • Hypothalamus is an important control center for sex drive , pleasure , pain , hunger, thirst body temperature, and other visceral functions.
                • Hypothalamus produces hormones that control the secretions of the anterior pituitary gland , and it also producesoxytocin.

                Mid-brain:

                • The midbrain lies between the thalamus  and pons.
                • Midbrain serves important functions in motor movement, particularly movements of the eye, and in auditory and visual processing.

                Hind-brain:

                There are three main parts of the hindbrain - pons, cerebellum, and medulla oblongata.

                

                • Pons regulate respiration.
                • Cerebellum helps with the coordination and movement related to motor skills, especially involving the hands and feet.
                • Medulla Oblangata plays an essential role in passing messages between your spinal cord and brain.
                • It's also essential for regulating your cardiovascular(Heart) and respiratory systems.

                

                Additional Information

                • Spinal cord is also a part of central nervous system.
                • Primary role of the spinal cord is to relay sensory, motor, and autonomic messages between the brain and the rest of the body.