Exploring The Neuron Knowledge Quiz

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Exploring The Neuron Knowledge Quiz - Quiz

The basic unit of the nervous system that carries electrical impulses and transmits signals throughout the body is known as the neuron. A neuron communicates with other neurons at special places called synapses or synaptic clefts. Did you know that the human brain has about a hundred billion neurons? Test how much you know about the neuron by raking up the test below. All the best!


Questions and Answers
  • 1. 

    A neuron is another name for

    • A.

      A person with below average intelligence

    • B.

      A nerve cell

    • C.

      A skin cell

    • D.

      Another name for a car invented by Ford

    Correct Answer
    B. A nerve cell
    Explanation
    A neuron is a nerve cell, which is responsible for transmitting information throughout the body. Neurons are specialized cells that play a crucial role in the functioning of the nervous system. They receive and process signals from other neurons or sensory receptors, and then transmit these signals to other neurons, muscles, or glands. Neurons are essential for various functions such as movement, sensation, perception, and cognition. They are highly specialized and have unique structures that allow them to efficiently transmit electrical and chemical signals.

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  • 2. 

    The part of the neuron that is labeled "A" is known as

    • A.

      Dendrite

    • B.

      Cell body

    • C.

      Axon

    • D.

      Myelin

    Correct Answer
    D. Myelin
    Explanation
    The part of the neuron labeled "A" is known as myelin. Myelin is a fatty substance that forms a protective covering around the axon of a neuron. It acts as an insulator, allowing electrical impulses to travel more efficiently along the axon. This helps to speed up the transmission of signals between neurons. The dendrites receive signals from other neurons, the cell body contains the nucleus and other organelles, and the axon is responsible for transmitting signals to other neurons or cells.

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  • 3. 

    The part of the neuron labeled as "B" is the

    • A.

      Axon

    • B.

      Cell body

    • C.

      Dendrite

    • D.

      Myelin

    Correct Answer
    A. Axon
    Explanation
    The part of the neuron labeled as "B" is the axon. The axon is a long, slender projection that carries electrical signals away from the cell body of the neuron. It is responsible for transmitting these signals, known as action potentials, to other neurons, muscles, or glands. The axon is covered by a fatty substance called myelin, which helps to insulate and speed up the transmission of the electrical signals. The cell body, on the other hand, contains the nucleus and other organelles necessary for the neuron's survival and functioning. Dendrites are short, branched extensions that receive signals from other neurons.

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  • 4. 

    The part of the neuron that is labeled "C" is the

    • A.

      Cell body

    • B.

      Myelin

    • C.

      Axon

    • D.

      Dendrite

    Correct Answer
    A. Cell body
    Explanation
    The part of the neuron labeled "C" is the cell body. The cell body, also known as the soma, contains the nucleus and other organelles necessary for the neuron's functioning. It integrates and processes incoming signals from dendrites and generates outgoing signals through the axon. The cell body plays a crucial role in maintaining the overall health and functioning of the neuron.

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  • 5. 

    The part of the neuron labeled "D" is the

    • A.

      Cell Body

    • B.

      Myelin

    • C.

      Dendrite

    • D.

      Axon

    Correct Answer
    C. Dendrite
    Explanation
    The part of the neuron labeled "D" is the dendrite. Dendrites are branch-like structures that extend from the cell body of a neuron and receive incoming signals from other neurons. They play a crucial role in transmitting these signals towards the cell body, where they are integrated and processed before being passed on to the axon for further transmission.

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  • 6. 

    The role of the axon is to send messages.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The axon is a long, slender projection of a neuron that carries electrical impulses away from the cell body to other neurons, muscles, or glands. These electrical impulses, also known as action potentials, are the means by which messages are transmitted throughout the nervous system. Therefore, the statement that the role of the axon is to send messages is correct.

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  • 7. 

    The role of the dendrite is to send messages.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because the role of the dendrite is not to send messages, but rather to receive messages from other neurons and transmit them to the cell body. Dendrites are the branched extensions of a neuron that act as the main site for receiving signals from other neurons or sensory receptors. These signals are then integrated and processed in the cell body before being transmitted to the axon for further communication.

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  • 8. 

    The dendrites and the cell body are composed of white matter

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because dendrites and the cell body are actually composed of gray matter, not white matter. Gray matter contains the cell bodies, dendrites, and synapses of neurons, while white matter consists of myelinated axons.

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  • Current Version
  • Dec 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 27, 2010
    Quiz Created by
    Yaeliz123
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