A&P Ch 7 Quiz 4

Explain the difference between a polarized neuron and a depolarized neuron.

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Ions pumped out of the cell during repolarization are ___ ions.

Neurons are restoring the ionic conditions utilizing the sodium-potassium pump.

• True

• False

Neurons are repolarizing as potassium ions diffuse out of the cell.

• True

• False

Neurons are depolarizing and generating an action potential.

• True

• False

Neurons are propagating the action potential.

• True

• False

Neurons are polarized with more sodium ions outside the cell and more potassium ions inside the cell.

• True

• False

Immediately after an action potential is propagated, which one of the following ions rapidly diffuses out of the cell into the tissue fluid?

___ ions are responsible for starting the action potential.

Myelinated neuron nerve impulse transmission are called ________.

• graded potential

• all-or-none response

• saltatory conduction

• repolarization