[Quantitative description of a slowly inactivating barium current through the somatic membrane of mollusk neurons].
The slow-inactivating barium current was recorded under voltage clamp conditions from identified neurons of the snail Helix pomatia. Experimental data were analyzed using the Hodgkin-Huxley equations. The dependence of the steady-state value of the inactivation variable on membrane potential was obtained. Slow-inactivating barium current was found to be proportional to the third power of the activation variable. The time constant of activation is strongly dependent upon the membrane potential.
D000818:Animals; D001464:Barium / Q000378:metabolism*; D002463:Cell Membrane Permeability; D004553:Electric Conductivity; D005724:Ganglia / Q000166:cytology*; D006372:Helix, Snails; D007700:Kinetics; D008564:Membrane Potentials; D009474:Neurons / Q000502:physiology* / Q000648:ultrastructure
D001464:Barium
Kolichestvennoe opisanie medlenno inaktiviruiushchegosia barievogo toka cherez somaticheskuiu membranu neĭronov molliuskov.