[Mathematical modeling of calcium incurrent flow in a somatic membrane during an action potential]

The application of modified Hodgkin -- Huxley equations to the description of transmembrane ionic currents when the action potential is generated in the somatic membrane of mullusc giant neurons is described. The input currents were divided on sodium and calcium components. The results of calculations were compared with the experimental data. An observed discrepancy between predicted and experimental action potentials is explained. Using the corrections proposed the results of calculations well agree with the experimental results.