[Microelectrophysiological analysis of the fiber components of the rat digastric muscle]

Membrane potential at rest (MP), action potential (AP), critical level of depolarization (CLD) and latent period (LP) of different muscle fibers were studied in two bellies of digastric muscle. Even and chaotic distribution of different muscle fibers was observed in the anterior and posterior belly, respectively. It is believed that electrophysiological data correspond to the results of histological analysis of muscle fibers in digastric muscle.