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7 Cards in this Set
- Front
- Back
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breathing mechanism (pressure) |
negative pressure ---> breathing |
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differential pressure |
difference between intrapulmonary (inside lung) pressure and intrapleural (outside lung) pressure |
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lung contraction |
1. diagphram contraction 2. increase chest volume 3. decreased pressure 4. air sucked into lungs 5. rib cage expands |
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intrapulmonary pressure |
atmospheric pressure |
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intrapleural pressure |
1. less than atmospheric pressure 2. prevents lung from collapsing 3. decreases even further during lung expansion |
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mouth to mouth |
positive pressure |
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surfactants |
1. produced in alveoli 2. decreases surface tension 3. helps alveoli to stay open |
