9. Which of the following correctly describes the end plate potential (EPP)? A)It is primarily mediated by Na+ influx B)It is both a local potential in the end plate area of the muscle cell that allows the muscle cell to depolarize and it is primarily mediated by Na+ influx C)It is both a local potential in the alpha motor neuron that allows a cell to depolarize and it is primarily mediated by Na+ influx D)It is a local potential in the end plate area of the muscle cell that allows the muscle cell to depolarize E)It is a local potential in the alpha motor neuron that allows the muscle cell to depolarize

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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.