MDCAT Physics MCQ #124

A patient is experiencing muscle fatigue during a marathon run. What is the primary reason for this fatigue?

MDCAT Physics MCQ #124

  1. Question 1

    Q1. A patient is experiencing muscle fatigue during a marathon run. What is the primary reason for this fatigue?

    • A) The rapid depletion of ATP stores in the muscle fibers
    • B) The accumulation of lactic acid in the muscle cells
    • C) The reduction of blood flow to the muscle tissues
    • D) The increase in body temperature due to exercise

    Answer: The rapid depletion of ATP stores in the muscle fibers

    Explanation: The rapid depletion of ATP stores in the muscle fibers is the primary reason for muscle fatigue, as it reduces the ability of the muscle to contract.