During the conduction of nerve impulse, the repolarisation occurs with the

Options

A. influx of `K^(+)` ions
B. influx of `Na^(+)` ions
C. efflux of `K^(+)` ions
D. efflux of `Mg^(2+)` ions

Answer

C

Explanation

When a stimulus is applied, sodium-potassium pump stops operating. Sodium ions rush inside and potassium ions rush outside. This results in depolarisation (action potential). After a period of action potential, sodium-potassium pump operates (efflux of `Na^(+)` and influxes of `(K^(+)`) and axon will get resting potential by repolarisation.