$\mathrm{J\_leak}+\mathrm{J\_extru}$ $\mathrm{k\_leak}(\mathrm{Ca\_i}-\mathrm{Ca\_o})$ $\frac{\mathrm{Vmax\_extru}}{1+\left(\frac{\mathrm{EC50\_extru}}{\mathrm{Ca\_i}}\right)^{\mathrm{n\_extru}}}$ $\frac{\mathrm{kuni\_max}\mathrm{Ca\_i}}{1+\left(\frac{\mathrm{EC50\_uni}}{\mathrm{Ca\_i}}\right)^{\mathrm{n\_uni}}}$ $\frac{-\mathrm{Vmax\_NaCa}}{1+\frac{\mathrm{EC50\_NaCa}}{\mathrm{Ca\_m}}}$ $\frac{-(\mathrm{delta\_Ca\_i}\mathrm{Vmax\_NaCa})}{1+\frac{\mathrm{EC50\_NaCa}}{\mathrm{Ca\_i}}}$ $\mathrm{J\_uni}+\mathrm{J\_NaCa}$ $1-\frac{1}{1-\left(\frac{\mathrm{k\_inhib}}{\mathrm{Ca\_i}}\right)^{\mathrm{n\_inhib}}}$ $-(\mathrm{J\_pm}+\mathrm{J\_mito})$ $\frac{\mathrm{J\_mito}}{\mathrm{gamma}}$