Anatomy Of Nervous System: Quiz!

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| By Nikoley
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Nikoley
Community Contributor
Quizzes Created: 2 | Total Attempts: 4,441
Questions: 8 | Attempts: 666

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Anatomy Of Nervous System: Quiz! - Quiz

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Questions and Answers
  • 1. 

    What is an afferent message?

    • A.

      A message coming from the brain to a muscle

    • B.

      A sensory message

    • C.

      A motory message

    • D.

      None of the above

    Correct Answer
    B. A sensory message
    Explanation
    An afferent message refers to a sensory message. It is a signal that travels from the peripheral nervous system to the central nervous system, specifically from sensory receptors to the brain or spinal cord. This message carries information about sensations such as touch, temperature, pain, and proprioception. It allows the brain to receive and interpret sensory input from the environment and the body.

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  • 2. 

    How many cranial nerves are there?

    • A.

      3

    • B.

      31

    • C.

      16

    • D.

      12

    Correct Answer
    D. 12
    Explanation
    There are 12 cranial nerves in the human body. These nerves originate from the brain and are responsible for various functions such as vision, hearing, smell, taste, and controlling muscles in the head and neck. Each cranial nerve has a specific role and function, and any damage or dysfunction in these nerves can lead to various neurological disorders.

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  • 3. 

    What is the function of a neuron?

    • A.

      Protection

    • B.

      Conduct impulses

    • C.

      Act as receptors for information

    • D.

      B & C

    Correct Answer
    D. B & C
    Explanation
    Neurons are specialized cells in the nervous system that transmit information through electrical and chemical signals. They function by conducting impulses, which involves the transmission of these signals from one neuron to another. Additionally, neurons can also act as receptors for information, as they receive and process sensory inputs from the environment. Therefore, the correct answer is B & C, as neurons both conduct impulses and act as receptors for information.

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  • 4. 

    Which is the correct way in which we receive information?

    • A.

      Cell body, axon, dendrite, axon hilcock

    • B.

      Dendrite, cell body, axon hillcock, axon

    • C.

      Axon, cell body, dendrite, axon hilcock

    • D.

      Dendrite, cell body, axon, axon hilcock

    Correct Answer
    B. Dendrite, cell body, axon hillcock, axon
    Explanation
    The correct way in which we receive information is through the pathway of dendrite, cell body, axon hillock, and axon. Dendrites receive signals from other neurons and transmit them to the cell body. The cell body integrates these signals and generates an electrical impulse. This impulse then travels through the axon hillock, which is the initial segment of the axon, and then propagates along the axon to transmit the information to other neurons or target cells.

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  • 5. 

    Majority of Internuerons are found where?

    • A.

      Spinal Cord

    • B.

      Brain

    • C.

      All of the above

    • D.

      None of the above

    Correct Answer
    B. Brain
    Explanation
    The majority of interneurons are found in the brain. Interneurons are a type of neuron that form connections between other neurons, allowing for communication and information processing within the central nervous system. While some interneurons are also found in the spinal cord, the brain is the main location where these neurons are concentrated. Therefore, the correct answer is "Brain."

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  • 6. 

    How many spinal nerves are there?

    • A.

      31

    • B.

      12

    • C.

      11 pairs

    • D.

      31 pairs

    Correct Answer
    D. 31 pairs
    Explanation
    There are 31 pairs of spinal nerves in the human body. Each pair emerges from the spinal cord and is responsible for transmitting sensory and motor signals to and from different parts of the body. These nerves play a crucial role in facilitating movement, sensation, and reflexes.

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  • 7. 

    Which of the following are a type of Glia cell?

    • A.

      Astrocytes

    • B.

      Epyndymal

    • C.

      Microglia

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    Astrocytes, Ependymal cells, and Microglia are all types of Glia cells. Glia cells are non-neuronal cells that provide support and protection for neurons in the central nervous system. Astrocytes are responsible for maintaining the blood-brain barrier, regulating the chemical environment, and providing nutrients to neurons. Ependymal cells line the ventricles of the brain and produce cerebrospinal fluid. Microglia are the immune cells of the central nervous system and are involved in defending against pathogens and clearing cellular debris. Therefore, all three options are types of Glia cells.

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  • 8. 

    The following is true of Schwann Cells and Oligodendrocytes except

    • A.

      Schwann cells hold nerve cells together and produce myelin sheath

    • B.

      Oligodendrocytes are in the CNS

    • C.

      Schwann cells are in the PNS

    • D.

      Oligodendrocytes engulf bacteria similar to lysosomes

    • E.

      All of the above is true

    Correct Answer
    D. Oligodendrocytes engulf bacteria similar to lysosomes
    Explanation
    The given statement is incorrect because oligodendrocytes do not engulf bacteria similar to lysosomes. Oligodendrocytes are responsible for producing myelin sheath in the central nervous system (CNS), while Schwann cells perform this function in the peripheral nervous system (PNS). Schwann cells also hold nerve cells together. Therefore, the correct answer is "Oligodendrocytes engulf bacteria similar to lysosomes."

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 14, 2008
    Quiz Created by
    Nikoley
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