How Does the Size and Shape of the Endplate Potential

question 19

Multiple Choice

How does the size and shape of the endplate potential change when recorded at different distances from the endplate at the NMJ?

• A) The EPP does not change when recorded at different distances from the NMJ.
• B) The EPP has the same amplitude but has a slower time course when recorded at increasing distances from the NMJ.
• C) The EPP has reduced amplitude but the same time course when recorded at increasing distances from the NMJ.
• D) The EPP has both a reduced amplitude and slower time course when recorded at increasing distances from the NMJ.
• E) The EPP has both an increased amplitude and slower time course when recorded at increasing distances from the NMJ.

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Definitions:

Variable Costs

Costs that vary in direct proportion to changes in the level of production or sales activity.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes towards covering fixed costs and generating profit.

Machine Hours

A measure of production time, calculated as the total hours that machinery is operated over a specific period.

Contribution Margin

The amount remaining from sales revenue after variable costs have been deducted, indicating the contribution of sales to covering fixed expenses.