### Regarding diameter of geometry

Posted:

**Sat Sep 05, 2020 7:31 pm**Hello, I am have imported a cell (in the gui, I am a little new to using) and I am running Hodgkin Huxley Channel simulation on the cell. I am modifying the geometric parameter: diameter and biophysical parameter Ra and Cm. I have set the diameter to 1.4e-6, kept Ra and Cm to default, and I am noticing that the wave speed of the AP is significantly less (by orders of 100 less ~0.01 m/s) then what is biologically possible 0.5 m/s to 10 m/s. I think I am not specifying the diameter parameter correctly, but I am not sure if there are other parameters in the gui that can affect the ap propagation speed.

1) Are there other parameters that if I do not specify correctly will produce unusual ap propagation speeds?

2) Are the parameters (such as Ra and Cm) usually left to default?

3) Should I be specifying 1.4 instead of 1.4e-6, I ask because it shows (um) in the label.

Thanks.

1) Are there other parameters that if I do not specify correctly will produce unusual ap propagation speeds?

2) Are the parameters (such as Ra and Cm) usually left to default?

3) Should I be specifying 1.4 instead of 1.4e-6, I ask because it shows (um) in the label.

Thanks.