What Happens When a Neuron Reaches the Threshold for an Action

question 8

Multiple Choice

What happens when a neuron reaches the threshold for an action potential?

• A)Sodium channels are closed.
• B)Potassium diffuses out of the cell.
• C)Sodium channels open.
• D)The plasma membrane is impermeable.
• E)The sodium-potassium pump is turned on.

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Definitions:

Flexible Budget Performance Report

A report that compares the actual performance and expenditures of a business against a budget that adjusts with the level of activity, helping to provide a more accurate basis for comparison and analysis.

Supplies Cost

The expense incurred to purchase supplies needed for the operation of a business.

Cost Formula

An equation used to determine the total cost of production or service delivery, factoring in fixed and variable costs.

Flexible Budget

A financial plan that modifies itself in response to variations in volume or activity intensity.