Chapter 4 Flashcards
(8 cards)
1
Q
Rising phase
A
Characterized by a rapid depolarization of the membrane.
2
Q
Overshoot
A
The part of the action potential where the inside of the neuron is positively charged with respect to the outside.
3
Q
Falling phase
A
Rapid repolarization until the membrane is more negative than the resting potential.
4
Q
Undershoot
A
(After-hyperpolarization) Gradual restoration of the resting potential.
5
Q
the net movement of ions across the membrane is…
A
…an electrical current (I).
6
Q
What is g?
A
Conductance.
7
Q
Equation for current.
A
I = g(V-E)
- V-E is driving force
8
Q
Voltage Clamp
A
Clamps the membrane potential of axon at any value.
