A. General properties of ion channels in CVS u Properties of ion channels a Permeation o Selectivity 0 Gating voltage-gatee chemically gated: ligand-gated phospharylation-gated mechanosensitive nongated background /leak channelsA. General properties of ion channels in CVS Properties of ion channels Permeation Selectivity Gating voltage-gated chemically gated: ligand-gated phospharylation-gated mechanosensitive nongated background / leak channels