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Ion concentrations
| Ion | Initial Concentration |
|---|---|
| Extracellular | |
| K+ | 5.4 mM |
| Na+ | 140 mM |
| Ca2+ | 1.8 mM |
| Intracellular | |
| K+ | 120 mM |
| Na+ | 9.71 mM |
| Ca2+ | 0.224 µM |
| Sarcoplasmic reticulum | |
| Ca2+ | 0.509 mM |
Shown are selected initial ion concentrations for the train of beats isometrically paced at a cycle length of 750 ms for all models.
