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. 2014 Apr 23;9(4):e94565. doi: 10.1371/journal.pone.0094565

Figure 5. Characteristics of action potentials and conduction velocity in physiological case.

Figure 5

A, conduction velocity along a line from SAN centre, through SAN periphery to atrial muscle. Top, data from rabbit heart [3]. Bottom, data from Kurata-Lindblad 1D model (x 1 = 1.2 mm, x 2 = 1.24 mm) and Zhang-Oxsoft 1D model (x 1 = 1.0 mm, x 2 = 1.32 mm) shown in Fig. 4 (physiological behaviour). B and C, maximum upstroke velocity (dV m/dt max, B) and overshoot and maximum diastolic potential (C) of action potentials. Top, data from intact rabbit SAN preparations (Bleeker et al. [22]; Kodama et al. [23]) and small ball-like rabbit SAN preparations (Kodama and Boyett [24]). Bottom, data from Kurata-Lindblad 1D model (x 1 = 1.2 mm, x 2 = 1.24 mm) and Zhang-Oxsoft 1D model (x 1 = 1.0 mm, x 2 = 1.32 mm) shown in Fig. 4 (physiological behaviour). RSARB is a marker for SAN-atrial muscle junction.