Expiration Flashcards by Jojo Darko

Q

What muscles contract/relax

A

Contracts
-Internal intercostal muscles

Relaxes
-External intercostal muscle
-Diaphragm

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Q

What happens to the diaphragm

A

It is pushed upwards as the ribcage moves

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Q

What happens to the Thoracic cavity

A

The volume decreases

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Q

What happens to the pressure in the lungs

A

It increases

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