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During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

  1. A
    First negative, then positive and again back to negative
  2. B
    First positive, then negative and continue to be negative
  3. C
    First negative, then positive and continue to be positive
  4. D
    First positive, them negative and again back to positive

Solution & Step-by-step Explanation

At rest, the inner membrane is negative (resting potential). During depolarization (impulse passage), ions enter, making the inside positive. After the impulse passes, ions exit (repolarization), making the inside negative again.

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During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?
A
First negative, then positive and again back to negative
B
First positive, then negative and continue to be negative
C
First negative, then positive and continue to be positive
D
First positive, them negative and again back to positive

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Human PhysiologyNervous SystemAction Potential

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