What neural or hormonal signal caused the change in MAP observed with prolonged muscle contraction?  (select all that apply) -Decreased ACh -Increased ACh -Increased EPI/NE -Decreased EPI/NE

Q: depolarization of the transverse tubules (T-tubules) promote

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Q: Which of the following choices best summarizes excitation-contraction coupling? A series of events…

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A: We are answering the first part only. For rest of question pls repost.

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A: Here i discuss about the muscles control.

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.