MDCAT Physics MCQ #728

A researcher studying muscle physiology uses an electric stimulator to induce muscle contraction. What is the primary mechanism of muscle contraction in this scenario?

MDCAT Physics MCQ #728

  1. Question 1

    Q1. A researcher studying muscle physiology uses an electric stimulator to induce muscle contraction. What is the primary mechanism of muscle contraction in this scenario?

    • A) Direct stimulation of muscle fibers
    • B) Release of neurotransmitters from motor neurons
    • C) Increased intracellular calcium ions
    • D) Excitation-contraction coupling

    Answer: Direct stimulation of muscle fibers

    Explanation: Direct stimulation of muscle fibers induces muscle contraction using an electric stimulator.