Local anesthetic

Get the Flash Player to see this player with the file: posterasin.flv


Year of production

2010

Content

Lidocaine alters signal conduction in neurons by blocking the fast voltage gated sodium (Na+) channels in the neuronal cell membrane that are responsible for signal propagation. With sufficient blockage the membrane of the postsynaptic neuron will not depolarize and will thus fail to transmit an action potential. This creates the anaesthetic effect.

Objective

Mode of Action for Health Care Professionals