Which of the Following Statements Regarding Neurons and the Action

question 25

Multiple Choice

Which of the following statements regarding neurons and the action potential is NOT true?

• A) efflux of K⁺ ions leads to a brief hyperpolarization of the cell membrane
• B) the resting membrane potential is approximately −80mV
• C) sodium ions that enter an axon through sodium channels in a given axonal region diffuse further along the axon, depolarizing the next axonal region
• D) in myelinated axons, sodium channels are distributed evenly
• E) all of the above are true

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Definitions:

Childhood Depression

A form of depression occurring in children, characterized by persistent sadness, irritability, and a lack of interest in activities.

Drunk Driving

The act of operating a motor vehicle while impaired by alcohol or other drugs to a level that renders the driver incapable of controlling the vehicle safely.

Reinforced

Pertains to a behavior that is strengthened or made more likely to occur in the future because it has been associated with a positive or negative reinforcement.

Asocial Style

Displaying a lack of interest in social interactions or a preference for solitude over engaging with others.