Select the statement that describes recruitment in muscle contraction. Neurotransmitters from the synaptic terminal of a motor neuron stimulate an action potential in the muscle fiber. The contraction of muscle fibers in one muscle stimulates the contraction of antagonistic muscles in an opposing muscle group. More motor neurons and larger motor units are activated to stimulate a greater number of muscle fibers for a more powerful muscle contraction. A decreasing number of motor neurons are connected to the muscle fiber as a muscle grows and becomes stronger.

Question

01-10-2020
Biology

contestada

Select the statement that describes recruitment in muscle contraction. Neurotransmitters from the synaptic terminal of a motor neuron stimulate an action potential in the muscle fiber. The contraction of muscle fibers in one muscle stimulates the contraction of antagonistic muscles in an opposing muscle group. More motor neurons and larger motor units are activated to stimulate a greater number of muscle fibers for a more powerful muscle contraction. A decreasing number of motor neurons are connected to the muscle fiber as a muscle grows and becomes stronger.

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Histrionicus Histrionicus · Answer 1 · 2020-10-01T05:42:59+02:00

Answer:

The correct answer is - More motor neurons and larger motor units are activated to stimulate a greater number of muscle fibers for a more powerful muscle contraction.

Explanation:

Recruitment in muscle contraction or motor unit recruitment refers to the periodical stimulation or activation of the one or more motor neurons to get the more or enhanced strength in a muscle contraction.

Additional motor neurons or motor units are activated, along with larger motor units to stimulates a higher number of fibers for increased strength of muscle contraction.