(Solved): Which one of the following is wrong about SA potential? At threshold V-gated Ca2+ channels open, cr ...
Which one of the following is wrong about SA potential? At threshold V-gated Ca2+ channels open, creating upstroke and contraction 5pontaneous depolarization is caused by Na+ flowing through channel that opens when hyperpolarized (HCN channels) Membrane voltage begins at ?60mV and gradually depolarizes to -40 threshold Repolarization is via opening of V-gated Na+ channels