12th

grade

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Quiz Chapter 11

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  • 1. Multiple Choice
    30 seconds
    1 pt

    A second nerve impulse cannot be generated until ________.

    all sodium gates are closed

    proteins have been resynthesized

    the Na ions have been pumped back into the cell

    the membrane potential has been reestablished

  • 2. Multiple Choice
    30 seconds
    1 pt

    An inhibitory postsynaptic potential (IPSP) is associated with ________.

    lowering the threshold for an action potential to occur

    opening of voltage-regulated channels

    hyperpolarization

    a change in sodium ion permeability

  • 3. Multiple Choice
    30 seconds
    1 pt

    Collections of nerve cell bodies outside the central nervous system are called ________.

    tracts

    ganglia

    nuclei

    nerves

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