CH 6: Structure and Functioning of a Nerve

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Questions and Answers

Which type of neuron carries impulses away from the central nervous system?

  • Motor Neurons (correct)
  • Interneurons
  • Connector Neurons
  • Sensory Neurons

What is the function of interneurons in the nervous system?

  • Linking sensory neurons to motor neurons and processing information (correct)
  • Covering the axon and insulating it
  • Carrying impulses from sense organs to the spinal cord
  • Bringing about responses in effectors

Where is the nucleus of a neuron located?

  • In the cell body (correct)
  • In the cytoplasm
  • In the myelin sheath
  • In the axon

What is the role of the myelin sheath in a neuron?

<p>Speeding up the transmission of electrical impulses (B)</p>
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Which neuron type responds to stimuli by transmitting impulses from the brain?

<p>Motor Neurons (C)</p>
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What is the main function of sensory neurons in the nervous system?

<p>Sensing stimuli and transmitting impulses towards the central nervous system (A)</p>
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Which part of a neuron is responsible for maintaining the neuron's health and functionality?

<p>Cytoplasm (D)</p>
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What do motor neurons transmit impulses to?

<p>Effectors like muscles and glands (B)</p>
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What is the function of axons in neurons?

<p>Transmitting impulses away from the cell body (C)</p>
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What is the role of connectors (interneurons) in the nervous system?

<p>Linking sensory neurons to motor neurons and processing information (D)</p>
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Which type of neuron is responsible for carrying impulses towards the central nervous system?

<p>Sensory Neurons (C)</p>
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What is the main function of motor neurons in the nervous system?

<p>Transmit impulses to effectors (B)</p>
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Which part of a neuron is responsible for controlling the metabolism and activities of the neuron?

<p>Nucleus (B)</p>
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What is the function of interneurons in the nervous system?

<p>Link sensory neurons to motor neurons (B)</p>
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Which part of a neuron fills the cell body and supports various cellular processes?

<p>Cytoplasm (B)</p>
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In which direction do motor neurons transmit impulses in the nervous system?

<p>Away from the central nervous system (C)</p>
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What is the role of the myelin sheath in a neuron?

<p>Speed up transmission of electrical impulses (C)</p>
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Where are interneurons mainly found in the body?

<p>Brain and spinal cord (C)</p>
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Which neuron type plays a key role in processing information and determining the appropriate response?

<p>Interneurons (A)</p>
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What is the primary function of axons in a neuron?

<p>Speed up transmission of electrical impulses (D)</p>
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What is the main function of the cytoplasm in a neuron?

<p>To support various cellular processes (D)</p>
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Which part of a neuron enables it to carry impulses away from the central nervous system?

<p>Axon (C)</p>
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What is the role of the nucleus in a neuron?

<p>To control the metabolism and activities of the neuron (A)</p>
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Which neuron type is responsible for responding to stimuli from the sense organs or receptors?

<p>Sensory (Afferent) Neurons (A)</p>
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What is the function of the myelin sheath in a neuron?

<p>To cover the axon, speed up transmission of electrical impulses, and provide insulation (C)</p>
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What does the cell body of a neuron contain?

<p>Nucleus and Cytoplasm (C)</p>
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Which part of a neuron maintains the health and functionality of the cell?

<p>Nucleus (A)</p>
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What is the function of interneurons in the nervous system?

<p>Link sensory neurons to motor neurons and process information (A)</p>
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Which part of a neuron is responsible for speeding up the transmission of electrical impulses?

<p>Myelin sheath (D)</p>
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What is the main function of a motor neuron in the nervous system?

<p>Respond to stimuli by transmitting impulses to effectors (C)</p>
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Where are sensory neurons transmitting impulses to in the nervous system?

<p>Spinal cord and brain (B)</p>
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Which structure in a neuron contains the nucleus and cytoplasm?

<p>Cell body (A)</p>
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