Explain the following: Role of Na + in the generation of action potential.
Sodium ions play an essential position withinside the technology of motion capability. When a nerve fibre is stimulated, the membrane capacity decreases. The membrane will become extra permeable to Na ions than to K ions. As a result, Na diffuses from the out of doors to the internal of the membrane. This reasons the interior of the membrane to become positively-charged, whilst the outer membrane profits a negatively charge. This reversal of polarity throughout the membrane is called depolarisation. The speedy influx of Na ions reasons the membrane capacity to increase, thereby producing an movement capacity.
