[Electromyotopography of 2-joint muscles of the thigh in rats subsequent to changes in their structure due to congenital skeletal deformity].
With the aid of multi--point recording of focal APs in the muscles, the bringing together of the motor nervous terminals and the increase in their dispersion within each terminal area as observed in the rat femoral two-joint muscles at inherent deformity of the hindlimbs, were revealed to induce a change in the character of interference of the focal APs. At the supramaximal stimulation of a respective ventral root of the spinal cord, the areas of motor nervous terminals having been brought together, an increase of the mutual effects of APs of adjacent areas' muscular fibers occurs as well as alteration of the character of AP conduction in the muscle which seems to be due to the interaction between external loops of muscular APs. The data obtained show the advantages of the electromyotopography which enables to estimate not only the character of AP spreading within the muscle but the latter's structure too (the length of muscle fibers, situation of motor nervous terminals, etc.).
D000200:Action Potentials; D000818:Animals; D002415:Cats; D004576:Electromyography / Q000379:methods; D006168:Guinea Pigs; D017880:Limb Deformities, Congenital; D009132:Muscles / Q000503:physiopathology*
Elektromiotopografiia dvusustavnykh myshts bedra krysy pri izmenenii ikh stroeniia v sviazi s vrozhdennymi deformatsiiami skeleta.