Cells of the Nervous System Quiz
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Questions and Answers

Which cell type supports neurons and modulates neuronal function?

  • Microglia
  • Oligodendrocytes
  • Ependymal cells
  • Astrocytes (correct)

    • Which type of glia forms the insulating sheaths of axons in the central nervous system (CNS)?

  • Schwann cells
  • Ependymal cells
  • Microglia
  • Oligodendrocytes (correct)

    • In the peripheral nervous system (PNS), which glial cell type produces myelin sheath for only one segment of a single axon?

  • Microglia
  • Schwann cells (correct)
  • Ependymal cells
  • Astrocytes

    • Which statement about neurons and glia is true?

    <p>~100 distinct types of neurons are found in the whole nervous system.</p> Signup and view all the answers

    What is the function of oligodendrocytes and Schwann cells?

    <p>Support neurons and modulate neuronal function</p> Signup and view all the answers

    What slows down or prevents the conduction of electrical signals along an axon?

    <p>Lack of myelination</p> Signup and view all the answers

    What is the main function of astrocytes at synapses?

    <p>Clear out synapses e.g. excess glutamate can become toxic</p> Signup and view all the answers

    What do astrocyte processes contribute to in the nervous system?

    <p>Glial limitans of the neural tube</p> Signup and view all the answers

    What is a crucial function of microglia during inflammation?

    <p>Secrete cytokines and chemokines that will serve to trigger an immune reaction</p> Signup and view all the answers

    What is a function of ependymal cells?

    <p>Assist with the move of cerebrospinal fluid (CSF)</p> Signup and view all the answers

    What do astrocyte endfeet provide nourishment to?

    <p>Endothelial cells that form the BBB</p> Signup and view all the answers

    What is a primary role of microglia in immunological surveillance?

    <p>React to foreign invaders of the CNS</p> Signup and view all the answers

    What contributes to regulating functions in the nervous system?

    <p>Contact inhibition between neighboring astrocytes</p> Signup and view all the answers

    What is thought to regulate astrocyte tiling?

    <p>Contact inhibition between neighboring astrocytes</p> Signup and view all the answers

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