CBNS106 Equations and Concentrations

K+ Outside Concentration

5 mM

K+ Inside Concentration

100 mM

K+ Eion (at 37 C)

-80 mV

Na+ Outside Concentration

150 mM

Na+ Inside Concentration

15 mM

Na+ Eion (at 37 C)

62 mV

Ca2+ Outside Concentration

2 mM

Ca2+ Inside Concentration

.0002 mM

Ca2+ Eion (at 37 C)

123 mV

Cl- Outside Concentration

150 mM

Cl- Inside Concentration

13 mM

Cl- Eion (at 37 C)

-65 mV

K+ or Na+ Nernst Equation

61.54 mV * log (Outside/Inside)

Cl- Nernst Equation

-61.54 mV * log (Outside/Inside)

Ca2+ Nernst Equation

30.77 mV * log (Outside/Inside)

Driving Force Equation

Vm - Eion (Membrane Voltage - Equilibrium Potential)