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12 Cards in this Set
- Front
- Back
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Pathway of air |
Nares -> nasal cavity -> pharynx -> larynx -> trachea -> bronchi -> bronchioles -> al |
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What is the site of the alveoli |
Gas exchange (gives O2 to blood and receives CO2) |
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The lungs abide by the gas laws that say pressure and volume are |
Inversely proportional |
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What chemical covers the alveoli |
Surfactant |
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What muscles are activated during inhalation? |
Diaphragm and external intercostal |
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What muscles are activated during exhalation |
Inner intercostal |
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The diaphragm contracts diring |
Inhalation |
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The diaphragm relaxes during |
Exhalation |
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As the chest wall expands, pressure |
Drops below atmospheric pressure, which allows air molecules to move in |
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During exhalation, the lungs recoil in response to |
Increasing pressure and a drop in volume |
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The alveoli expand during |
Inhalation |
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Alveoli are elastic, meaning they |
Recoil upon exhalation |
