Neurons and Nervous System Components Quiz
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Questions and Answers

What is the structural unit of the nervous system?

  • Reflex arc
  • Ganglion
  • Soma
  • Dendrites (correct)
  • Which part of the neuron carries impulses from the cell body?

  • Myelin sheath
  • Soma
  • Nucleus
  • Axon (correct)
  • Where is a collection of neurons found outside the CNS located?

  • Ganglion (correct)
  • Soma
  • Nerve
  • Reflex arc
  • What is the junction between the axon of one neuron and dendrites, soma, or axon of other neurons called?

    <p>Synapse</p> Signup and view all the answers

    What covers myelinated axons but not non-myelinated axons?

    <p>Myelin sheath</p> Signup and view all the answers

    The sympathetic nervous system increases light entering the eyes in dim conditions.

    <p>True</p> Signup and view all the answers

    Sympathetic nervous system constricts blood vessels near the skin's surface to increase heat loss.

    <p>False</p> Signup and view all the answers

    SNS initiates the breakdown of stored fat to release energy.

    <p>True</p> Signup and view all the answers

    Increased sweating is stimulated by the parasympathetic nervous system.

    <p>False</p> Signup and view all the answers

    Chronic activation of the sympathetic nervous system can lead to health problems like high blood pressure and cardiovascular disease.

    <p>True</p> Signup and view all the answers

    SNS activation is typically triggered by situations promoting relaxation and rest.

    <p>False</p> Signup and view all the answers

    The Sympathetic Nervous System is commonly known as the 'rest and digest' system.

    <p>False</p> Signup and view all the answers

    Activation of the Sympathetic Nervous System can lead to increased heart rate and blood pressure.

    <p>True</p> Signup and view all the answers

    The Sympathetic Nervous System decreases alertness and metabolic rate when activated.

    <p>False</p> Signup and view all the answers

    Stimulation of the Sympathetic Nervous System results in decreased respiratory rate.

    <p>False</p> Signup and view all the answers

    The Sympathetic Nervous System prepares the body for strenuous activity.

    <p>True</p> Signup and view all the answers

    The Sympathetic Nervous System is not involved in increasing alertness.

    <p>False</p> Signup and view all the answers

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