Which Factor Influences the Strength with Which a Muscle Fiber

question 18

Multiple Choice

Which factor influences the strength with which a muscle fiber contracts?

• A) The amount of acetylcholine released into the synaptic cleft
• B) The amount of calcium released
• C) The length of the muscle fiber before the contraction begins
• D) The size of the muscle fiber

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Definitions:

Right Angles

Describes an angle of 90 degrees, representing the intersection at which two lines or planes meet to form a perfect corner.

Circular Elements

Components or parts of a design characterized by their round shape, important in various engineering and architectural constructs.

Circular Runout

A geometric dimensioning and tolerancing (GD&T) term that refers to the variation of a feature's surface as it is rotated around a datum axis.

Total Runout

The maximum allowable variation in the shape and location of a feature when measured around the entire surface.