Explain Why the Voltage-Gated Na? Channels Can Close While the Cell

question 76

Essay

Explain why the voltage-gated Na? channels can close while the cell is depolarized even though the depolarization was the initial stimulus for the channel opening.Include a discussion on refractory periods and explain why action potentials travel in only one direction.

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Definitions:

Competence

The ability to do something successfully or efficiently, often relating to a specific skill or knowledge set.

Intrinsic Motivation

The drive to engage in activities for their own sake, for the satisfaction and pleasure derived from the activity itself, rather than for some external reward.

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Motivation that is driven by external rewards such as money, fame, grades, or praise, in contrast to intrinsic motivation, which is driven by personal satisfaction or interest.

Extrinsic Motivation

Encouragement stemming from external factors including wealth, recognition, scores, and compliments.