Action Potential Flashcards
1
Q
Before action potential sodium flows fast because?
A
Chemical and electrical pull
2
Q
After action potential potassium flows fast because
A
Chemical and electrical pull
3
Q
Resting action potential
A
cell is negative
Outside is positive
-70 mV
4
Q
Depolarizing stimulus
A
Signal is send through the axon
5
Q
Threshold is met
A
-55 mV
Voltage gated Na channels open
Delay voltage gated K channels open
6
Q
Na+ entry
A
Depolarizes the cell
7
Q
Na+ channels close
A
K+ channels open
8
Q
K+ exits cell
A
hyperpolarizes the cell
9
Q
Cell returns to resting potential
A
A new action potential can’t activate till reset is complete
