Oscilloscope Traces Flashcards
1
Q
What are oscilloscopes?
A
scientific instruments that are used to measure the membrane potential across a neuronal membrane
2
Q
What is on the X axis of an oscilloscope graph?
A
Time (in milliseconds)
3
Q
What is on the Y axis of an oscilloscope graph?
A
Membrane potential(in millivolts)
4
Q
How long does a typical action potential last?
A
3-5 milliseconds
5
Q
What are the 4 stages of an action potential?
A
Resting potential, depolarization, repolarization, refractory
6
Q
How many mV is depolarization?
A
Na influx +30mV
7
Q
How many mV is repolarization?
A
K efflux -80mV
8
Q
What is the refractory period?
A
Return to resting
