Figure 7.
![Figure 7. Free dynamics of the toy model for stable (green) and unstable (red) values of the JSR refilling rate. (A) “Number” of open RyRs as a function of time; (B) [Ca2+]JSR ; (C) phase–plane parametric plot of nopen versus casr. (D) Phase–plane plot of number of open RyRs and [Ca2+]JSR in the ensemble average of 10,000 stochastic sparks generated by the full model for stable and unstable parameters. Green, stable: τfill = 6.5 ms (Dup = 0.15); red, unstable: τfill = 1 ms (Dup = 1). Compare with C.](https://cdn.rupress.org/rup/content_public/journal/jgp/142/3/10.1085_jgp.201311034/5/jgp_201311034_fig7.jpeg?Expires=1773461617&Signature=F55J8vKK1FCZTt99q6s485WCw3U4qUu2bdMFDqoEz4fZO0alMXBJia0bC7Dx80U3P~HqV-NSSCPR5QCdyEBnFJ~igWKLj0FLTzRU4KMXuia6dltwijTip4DppqRx3C3CNJqN5ycWKERP5YM-CeUBF2MJoJ1QpQZlUufNsvIkGpyAIJSwXILuxIsxsNyYYHioPsulJvMiQk6OfDs-My6IPEjVb9Y5FvM9-EESFxBzgNpgZwfqF1aVxP1dssfCACRiZlaWaEj6m17aaREZz44pMfgO~jLLcc5HVkaqycWLBlf5qagBowxmTDr39kj1hVXQqKkAAdjXJ7xPszuusCzKOA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Free dynamics of the toy model for stable (green) and unstable (red) values of the JSR refilling rate. (A) “Number” of open RyRs as a function of time; (B) [Ca2+]JSR ; (C) phase–plane parametric plot of nopen versus casr. (D) Phase–plane plot of number of open RyRs and [Ca2+]JSR in the ensemble average of 10,000 stochastic sparks generated by the full model for stable and unstable parameters. Green, stable: τfill = 6.5 ms (Dup = 0.15); red, unstable: τfill = 1 ms (Dup = 1). Compare with C.
