Action Potential

What potential is a small depolarisation caused by sodium ions entering the cell?
Generator
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Achieved when the membrane is depolarised to a value of about +40mV
Action Potential
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What does a polarised membrane have across it?
Potential Difference
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What potential is a potential difference across the membrane of about -50mV?
Threshold
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What happens when a membrane looses its resting potential?
Depolarises
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The condition of a membrane that is more highly polarised than the usual resting state.
Hyperpolarised
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After each action potential it is impossible to stimulate the cell membrane to reach another action potential, what is this period known as?
Refractory
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Term used to describe the movements of ions along the neurone.
Local Current
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Other cards in this set

Card 2

Front

Achieved when the membrane is depolarised to a value of about +40mV

Back

Action Potential

Card 3

Front

What does a polarised membrane have across it?

Back

Preview of the front of card 3

Card 4

Front

What potential is a potential difference across the membrane of about -50mV?

Back

Preview of the front of card 4

Card 5

Front

What happens when a membrane looses its resting potential?

Back

Preview of the front of card 5
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