zw3 Na_i 3 Ca_o V 0.35 FonRT Na_o 3 csm V 0.35 1 FonRT zw4 1 0.2 V 0.35 1 FonRT aloss 1 1 xkdna Ca_submem 3 yz1 xmcao Na_i 3 xmnao 3 csm yz2 xmnai 3 Ca_o 1 csm xmcai yz3 xmcai Na_o 3 1 Na_i xmnai 3 yz4 Na_i 3 Ca_o Na_o 3 csm zw8 yz1 yz2 yz3 yz4 jNaCa gNaCa aloss zw3 zw4 zw8 xiNaCa wca jNaCa