Local anesthetics:
Ans. (B) Blocks the influx of sodium into the cell(Ref: KDT 8th/e p388, 389)LA block nerve conduction by inhibiting Na+ entry during upstroke of action potential.
Block the release of neurotransmitters
Blocks the influx of sodium into the cell
Increase the release of inhibitory neurotransmitters
Inhibit the efflux of sodium from neurons
Anaesthesia