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Nerve Cell Potential
Voltages
| Question | Answer |
|---|---|
| What is Electrostatic Equilibrium? | A STATIC state where the Diffusional tendency is counteracted by the Electrostatic attraction |
| Which Ions are moving when there is an Electrochemical Equilibrium? | NO net MOVEMENT of Ions |
| What is Equilibrium Potential? | VOLTAGE which exists for an Ion when it reaches Electrochemical Equilibrium |
| At rest, which Ions are most permeable? | the Axon membrane is 50-75x more permeable to K+ than Na+ |
| What element of Equilibrium Potential does Permeability affect? | Polarization |
| What element of Equilibrium Potential does Concentration affect? | Resting Potential |
| When Ion Conentration changes what force is also changed? | Diffusional Force |
| What is the INTERIOR Voltage of K+? | 150 |
| What is the EXTERIOR Voltage of K+? | 5 |
| What is the INTERIOR Voltage of Na+? | 15 |
| What is the EXTERIOR Voltage of Na+? | 150 |