TABLE 2.
Electrical parameters of the cell body, dendrite, and axon.
| Parameter | Value |
| General | |
| Membrane capacitance | 1 μF/cm2 |
| Leakage reversal potential | −65 mV |
| Na+ Nernst potential | 45 mV |
| K+ Nernst potential (without K+ accumulation) | −90 mV |
| Ca2+ Nernst potential | 140 mV |
| Soma and dendrite | |
| Max voltage-gated Na+ conductance | 80 pS/μm2 |
| Max slow non-inactivating K+ conductance | 0.3 pS/μm2 |
| Max fast voltage-gated K+ conductance | 20 pS/μm2 |
| Max Ca2+-dependent K+ conductance | 3 pS/μm2 |
| Max high-voltage activated Ca2+ conductance | 0.3 pS/μm2 |
| Leakage conductance | 0.5 pS/μm2 |
| Axonal initial segment (AIS) | |
| Max fast voltage-gated Na+ conductance | 1,100–3,200 pS/μm2 |
| Max fast voltage-gated K+ conductance | 200–1,000 pS/μm2 |
| Leakage conductance | 0.5 pS/μm2 |
| Axon internode section | |
| Myelin conductance | 10 pS/μm2 |
| Myelin capacitance | 0.1 μF/cm2 |
| PNJ leakage conductance | 1 pS/μm2 |
| JXP leakage conductance | 1 pS/μm2 |
| JXP max fast K+ conductance | 300 pS/μm2 |
| IND leakage conductance | 1 pS/μm2 |
| Axon node | |
| Max voltage-gated Na+ conductance | 6,000 pS/μm2 |
| Max slow voltage-gated K+ conductance | 150 pS/μm2 |
| Leakage conductance | 1 pS/μm2 |
PNJ, paranodal junction; JXP, juxtaparanode; IND, internode.