The Structural Theory That Explains How a Muscle Fiber Contracts

question 94

Multiple Choice

The structural theory that explains how a muscle fiber contracts is called the ________ theory.

• A) sliding filament
• B) excitation-contraction coupling
• C) neuromuscular
• D) muscle contraction
• E) action-myosin interaction

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Definitions:

Labor Specialization

The division of labor where individuals focus on a narrow area of expertise, improving efficiency and productivity.

Economies of Scale

The cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output decreasing with increasing scale.

Diseconomies of Scale

A phenomenon where a company's production costs increase due to an expansion in output, leading to inefficiencies.

Fixed Costs

Expenses that do not change with the level of output or sales, such as rent, salaries, and insurance.