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Which of the following scenarios will result in increased levels of tension in a muscle fiber: Lengthening the sarcomere so that few cross-bridges can form. Evoking motor neuron action potentials in intervals of 200 msec. Recruiting greater numbers of Type I motor units. Recruiting Type IIB motor units.

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Answer:

Recruiting Type IIB motor units.

Explanation:

Although the type IIB motor units are highly vulnerable to ache and fatigue yet these are the one that produce most strength when stimulated. They are the first to stop when the force on a muscle is reduced and also the last when the most force is required by muscle fibers.

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