In Multiple Sclerosis the Myelin Sheaths Around the Axons of the Brain

question 33

Multiple Choice

In multiple sclerosis the myelin sheaths around the axons of the brain and spinal cord are damaged and demyelination results.How does this disease manifest at the level of the action potential?

• A)Action potentials move in the opposite direction on the axon.
• B)Action potentials move more slowly along the axon.
• C)Action potentials are entirely negated.
• D)All of the above occurs in multiple sclerosis.

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Definitions:

Operant Conditioning

A learning process through which the strength of a behavior is modified by reinforcement or punishment, introduced by B.F. Skinner.

Observational Learning

The process of learning behaviors by watching the actions of others, and the outcomes of those actions.

Instrumental Conditioning

A learning process through which the strength of a behavior is modified by reinforcement or punishment, also known as operant conditioning.

Acquisition

The process of learning or developing a new skill, behavior, or ability.