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Buffering and total calcium levels determine the presence of oscillatory regimes in cardiac cells

Fig 11

Structure of the nullclines at different values of indicated in the title of each panel.

The black line indicates the nullcline , while the orange line corresponds to . The red curve is a trajectory with a direction indicated by the red arrows.

doi: https://doi.org/10.1371/journal.pcbi.1007728.g011