Question

these processes occurs during repolarization of nerve fibres​

Answer 1

Answer:

so the correct answer is option A. ☺️

Explination:

Polarization events help in the conduction of nerve impulses between nerve cells. Depolarization and repolarization are the phases during nerve transmission.

Polarization events help in the conduction of nerve impulses between nerve cells. Depolarization and repolarization are the phases during nerve transmission.In depolarization, the charge of the inner side of the membrane shifts from negative to positive by opening sodium influx and potassium ex-flux out of the cell.

Polarization events help in the conduction of nerve impulses between nerve cells. Depolarization and repolarization are the phases during nerve transmission.In depolarization, the charge of the inner side of the membrane shifts from negative to positive by opening sodium influx and potassium ex-flux out of the cell.Repolarization is the shift of charge of the inner side of the membrane from positive to negative by the closing movement of Na and K influx in the cell. So, the correct answer is option A.

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Answer 2

Repolarization is a stage of an action potential in which the cell experiences adecrease of voltage due to the efflux of potassium (K+) ions along its electrochemical gradient. ... After repolarization, the cell hyperpolarizes as it reaches resting membrane potential (−70 mV){in neuron −70 mV}.

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