In the sodium-calcium exchanger (NCX), the ratio of Na+ : Ca++ exchange per event is:
NCX (sodium and calcium exchanger) is present in the myocardial fiber. It exchanges 3 Na+ with 1 Ca++. That is, 3 sodium ions are moved out of the cell for every 1 calcium ion brought in (L type Ca channels).
6:01
3:01
1:01
1:03
Transpo Processes