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PE Paper 1 > Breathing > Flashcards

Breathing Flashcards

1
Q

What happens to breathing muscles and diaphragm during inspiration?

A

Breathing muscles contract

Diaphragm contracts and flattens

Thus chest cavity enlarges

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2
Q

What happens to breathing muscles and diaphragm during expiration?

A

Breathing muscles relax

Diaphragm curves and returns to dome shape

Chest volume decreases

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PE Paper 1 (8 decks)

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