Nervous Tissue and Motor Division Quiz
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Questions and Answers

What is the primary function of astrocytes in the central nervous system?

  • Monitoring the health of nearby neurons
  • Producing myelin sheaths
  • Bracing and anchoring neurons to blood capillaries (correct)
  • Conducting nerve impulses
  • Which type of glial cells produce myelin sheaths in the central nervous system?

  • Oligodendrocytes (correct)
  • Satellite cells
  • Microglia
  • Ependymal cells
  • What is the function of microglia in the central nervous system?

  • Wrap around nerve fibers
  • Protect neurons from harmful substances in blood
  • Monitor the health of nearby neurons (correct)
  • Produce cerebrospinal fluid
  • Which glial cells form myelin sheath around nerve fibers in the peripheral nervous system?

    <p>Schwann cells</p> Signup and view all the answers

    What is the main role of satellite cells in the peripheral nervous system?

    <p>Cushion neuron cell bodies</p> Signup and view all the answers

    What is the general function of support cells (neuroglia) in the nervous tissue?

    <p>Insulating neurons</p> Signup and view all the answers

    What is the function of sensory nerves in the nervous system?

    <p>Carry impulses toward the CNS</p> Signup and view all the answers

    Which part of a nerve surrounds each individual fiber?

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

    What is the main function of motor nerves in the nervous system?

    <p>Carry impulses away from the CNS</p> Signup and view all the answers

    Which pair of cranial nerves extends beyond the head and neck to thoracic and abdominal cavities?

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

    Which structure wraps groups of fibers bound into a fascicle in a nerve?

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

    What divides soon after leaving the spinal cord into a dorsal ramus and a ventral ramus?

    <p>Spinal nerves</p> Signup and view all the answers

    What is the main function of dendrites in a neuron?

    <p>Conduct impulses toward the cell body</p> Signup and view all the answers

    Which type of cells produce myelin sheaths around axons of the central nervous system (CNS)?

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

    What is the role of nodes of Ranvier along the axon?

    <p>Allow for saltatory conduction</p> Signup and view all the answers

    Which term refers to collections of cell bodies outside the central nervous system (CNS) in the peripheral nervous system (PNS)?

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

    What is the main function of axons in a neuron?

    <p>Conduct impulses away from the cell body</p> Signup and view all the answers

    In terms of functional classifications, which type of neurons transmit impulses from sensory receptors to the central nervous system (CNS)?

    <p>Sensory neurons</p> Signup and view all the answers

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