Action Potential Flashcards by Grace Hornby

Q

Are the Na+ channels open at stage 1?

A

Open

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Q

Are the K+ channels open at stage 1?

A

Closed

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Q

Are the Na+ channels open at stage 2?

A

Open

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Q

Are the K+ channels open at stage 2?

A

Closed

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Q

Are the Na+ channels open at stage 3?

A

Closed

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Q

Are the K+ channels open at stage 3?

A

Open

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Q

Are the Na+ channels open at stage 4?

A

Closed

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Q

Are the K+ channels open at stage 4?

A

Closed

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Q

Are the Na+ channels open at stage 5?

A

Closed

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Q

Are the K+ channels open at stage 5?

A

Closed

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Q

What happens at stage 1?

A

Depolarisation to threshold potential

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Q

What happens at stage 2?

A

Depolarisation to +40mV

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Q

What happens at stage 3?

A

Repolarisation

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Q

What happens at stage 4?

A

Hyperpolarisation

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Q

What happens at stage 5?

A

Resting potential

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Q

Study These Flashcards

A

Q

Study These Flashcards

A