Professor Freeman Calls on His Student Maya to Describe How

question 115

Multiple Choice

Professor Freeman calls on his student Maya to describe how the presence of myelin affects an action potential.Maya should respond with which of the following statements?

• A)Current flows along the unmyelinated segments and action potentials propagate along the myelinated portions of the axon,decreasing the speed and efficiency of the action potential.
• B)Current flows under the myelin and action potentials propagate along the unmyelinated segments of the axon,decreasing the speed and efficiency of the action potential.
• C)Current flows along the unmyelinated segments and action potentials propagate along the myelinated portions of the axon,increasing the speed and efficiency of the action potential.
• D)Current flows under the myelin and action potentials propagate along the unmyelinated segments of the axon,increasing the speed and efficiency of the action potential.

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Definitions:

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