Membrane And Action Potential Flashcards
1
Q
How many k+ are swapped for na+
A
2 k in for every 3 na out
2
Q
What is equilibrium potential and whats its equation?
A
Force of conc gradient pushing k+ out is the same as the electrical force pulling k+ in
Eq= 58mv x log(conc of c out/ conc of c in)
3
Q
What’s the k+ conc in and out of a cell?
A
In 140
Out 10mM
4
Q
What’s the na+ conc in and out of a cell
A
In- 4
Out- 140
5
Q
What’s the Ek and Ena?
A
Ena 50
EK -90
Both balance to -70 which is the resting potential
6
Q
What are the 2 types of currents?
A
Saltatory - nodes of ranvier
Local circuits
