Which of the following scenarios would increase the force of muscle contraction?

Question

Which of the following scenarios would increase the force of muscle contraction? SELECT ANY ACCURATE STATEMENTS recruiting smaller (but NOT larger) motor units activating many motor units simultaneously stretching muscles (slightly) above resting length increasing (frequency of) nervous system stimulation of a muscle decomposition of acetylcholine by acetylcholinesterase in the neuromuscular junction Save Question 5 (1 point) - Which statements) correctly describe(s) the term "muscle tone?" SELECT ANY ACCURATE STATEMENTS 14

Explanation / Answer

firstly activating many motor units simultaneously will increase the muscle contraction.

when nervous system generates signal, it will begin to contract muscles.the signal, impulse or called as action potential travel though the cells called motor cells or motor nuerons. when the signal reaches neurotransmittor junction, acetyle choline is secreted in presynaptic terminal and muscle fibers. it regulated the muscle movement as it secreted will contract the muscle, immediately decomposed by acetylcholine esterase. than with the help of hydrolysis and ATP it will be reformed for another set of contraction.

hence activating motor unit simultaneously, nervous system stimuli and acetylcheline decomposition by acetylcholine esterase, increases the force of muscle contraction.

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