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Table 3 Summary of TPT and θ values as a function of number of gap-junction channels.

From: Action potential repolarization enabled by Ca++ channel deactivation in PSpice simulation of smooth muscle propagation

  

Rbt = 1.0 KΩ

Rbt = 600 MΩ

Number of gap-junction channels #

Rgj (MΩ)

TPT (ms)

Θ (cm/s)

TPT (ms)

Θ (cm/s)

0

100,000

9.0*

17.8*

9.3

19.4

1

10,000

8.8*

18.2*

8.0

22.6

10

1,000

8.0

22.5

6.3

28.7

100

100

2.8

64.3

2.0

90.0

1,000

10

0.1

1800

0.04

5143

10,000

1

0

8

0

8

  1. # Each gap-junction channel was assumed to have a conductance of 100 picosiemens (pS)
  2. * For only 9 cells, because cell #10 failed to fire.