click below
click below
Normal Size Small Size show me how
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 |