Objective 3 - Neurons & Reflex Arcs

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    Identify the part of the neuron shown here: - ProProfs

    Identify the part of the neuron shown here:

    • Axon
    • Axon terminal
    • Dendrite
    • Soma
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About This Quiz

Explore the structure and function of neurons and reflex arcs in this engaging quiz. Key topics include neuron anatomy, types of neurons, the sequence of reflex arcs, and implications of nerve damage. This quiz is ideal for students seeking to deepen their understanding of human biology and nervous system functionality.

Objective 3 - Neurons & Reflex Arcs - Quiz

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  • 2. 

    What type of neuron sends information TO the brain?

    • Motor neuron

    • Interneuron

    • Sensory neuron

    • None of the above

    Correct Answer
    A. Sensory neuron
    Explanation
    Sensory neurons are responsible for sending information from sensory receptors in the body to the brain. These neurons detect various stimuli such as touch, temperature, pain, and transmit signals to the brain, allowing us to perceive and interpret our surroundings. Motor neurons, on the other hand, transmit signals from the brain to muscles and glands, while interneurons facilitate communication between different neurons within the central nervous system. Therefore, the correct answer is sensory neuron.

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  • 3. 

    The ________________ of the neuron receives neurotransmitters, then sends an electrical signal down the ________.

    • Axon; axon terminal

    • Dendrites; axon

    • Dendrites; soma

    • Axon; dendrites

    Correct Answer
    A. Dendrites; axon
    Explanation
    Dendrites are the branch-like extensions of a neuron that receive neurotransmitters, which are chemical messengers, from other neurons. These neurotransmitters bind to receptors on the dendrites and initiate an electrical signal. This electrical signal then travels down the axon, a long fiber-like structure of the neuron, to the axon terminal where it is transmitted to the next neuron or target cell. Therefore, the correct answer is dendrites; axon.

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  • 4. 

    A person who can move their left leg, but cannot feel anything below the left knee, probably has what type of nerve damage?

    • Sensory nerve damage

    • Motor nerve damage

    • Sensory and motor nerve damage

    • Interneuron damage

    Correct Answer
    A. Sensory nerve damage
    Explanation
    A person who can move their left leg but cannot feel anything below the left knee most likely has sensory nerve damage. Sensory nerves are responsible for transmitting sensations such as touch, temperature, and pain to the brain. In this case, the person's ability to move their leg suggests that the motor nerves, which control muscle movement, are intact. However, the lack of sensation indicates a problem with the sensory nerves, resulting in the inability to feel anything below the left knee.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 15, 2013
    Quiz Created by
    Rlabov
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