Oscilloscope Traces Flashcards

1
Q

What are oscilloscopes?

A

scientific instruments that are used to measure the membrane potential across a neuronal membrane

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2
Q

What is on the X axis of an oscilloscope graph?

A

Time (in milliseconds)

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3
Q

What is on the Y axis of an oscilloscope graph?

A

Membrane potential(in millivolts)

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4
Q

How long does a typical action potential last?

A

3-5 milliseconds

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5
Q

What are the 4 stages of an action potential?

A

Resting potential, depolarization, repolarization, refractory

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6
Q

How many mV is depolarization?

A

Na influx +30mV

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7
Q

How many mV is repolarization?

A

K efflux -80mV

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8
Q

What is the refractory period?

A

Return to resting

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