#12 Flashcards
1
Q
Vm (Membrane Potential) Definition
A
The voltage across the cell membrane at any point in time
2
Q
Vrest (Resting Potential) Definition
A
The value of Vm specifically when the cell is at rest (not net current flow across the membrane)
3
Q
Vrec (Reversal Potential) Definition
A
Voltage at which current flow switches from inward to outward or vice versa
4
Q
Battery / Resting Membrane Potential Components
A
Concentration Differences and Permeability
5
Q
Creation of Concentration Differences
A
Na / K Pumps ions against their gradients
6
Q
Function of Cyanide
A
Blocks Na / K pump by blocking ATP synth in mito
7
Q
Na / K Pump Ratio
A
3 Na OUT
2 K IN
