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What Secondary Motions Do the Extensor Pollicis Longus,pollicis Brevis,and Abductor

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Essay

What secondary motions do the extensor pollicis longus,pollicis brevis,and abductor pollicis longus cause at the wrist? What synergy do they require to function effectively as thumb extensors?


Definitions:

Operating Leverage

A measure of how sensitive a company's operating income is to its revenue changes, indicating the proportion of fixed versus variable costs.

Initial Cash Outlay

The initial funds required for an investment or project, including costs such as acquisition, setup, and related expenses.

Operating Leverage

The degree to which a firm or project can increase operating income by increasing revenue, a measure of how sales growth translates to growth in operating income.

Forecasting Error

The difference between the actual outcome and the predicted value in a forecast.

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