RAJASTHAN PMT Rajasthan - PMT Solved Paper-2003

  • question_answer
    Nerve impulse initiates with the movements of

    A)  \[{{K}^{+}}\]                                     

    B)  \[N{{a}^{+}}\]

    C)  \[C{{a}^{+}}\]                  

    D)         \[M{{g}^{+}}\]

    Correct Answer: B

    Solution :

    Any stimulus leads to leakage if sodium ions down an electrichemical gradient into the   nerve fibre causing depolarization of the nerve membrane.


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