NEET Biology Locomotion and Movement Question Bank Self Evaluation Test - Locomotion and Movement

  • question_answer
    Before stimulating the release of calcium ions that causes muscle contraction in skeletal muscle, an action potential must pass through the:

    A) Sarcoplasmic reticulum

    B) T-tubules and Sarcoplasmic reticulum

    C) Plasma membrane and T-tubules

    D) Plasma membrane, T-tubules and Sarcoplasmic reticulum

    Correct Answer: C

    Solution :

    [c] The action potential is initiated on the plasma membrane at the neuromuscular junction. It then \[C{{a}^{2+}}\] before reaching the triads that initiate the opening of the channels of the sarcoplasmic reticulum.


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