Ventilation Flashcards

1
Q

Inhalation: Role of diaphragm

A

Contracts and flattens

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2
Q

Exhalation: Role of diaphragm

A

Relaxes and moves up

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3
Q

Inhalation: Role of external intercostal muscles

A

contracts

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4
Q

Exhalation: Role of external intercostal muscles

A

relaxes

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5
Q

Inhalation: Role of ribs

A

Moves up and out

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6
Q

Exhalation: Role of ribs

A

Drops down and inwards

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7
Q

Inhalation: thorax

A

Increases

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8
Q

Exhalation: thorax

A

Decreases

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9
Q

Inhalation: Air pressure

A
  • Decreases in lungs compared to outside
  • Air is drawn in
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10
Q

Exhalation: Air pressure

A
  • Increases in lungs compared to outside
  • Air is forced out
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