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10 Cards in this Set
- Front
- Back
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dome shaped diaphragm flattens as it contracts |
inspiration |
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increases the height of the thoracic cavity |
inspiration |
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external intercostal m. contract |
inspiration |
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increase the circumference of the thoracic cavity |
inspiration |
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external intercostals relax |
expiration |
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rib cage drops under force of gravity |
expiration |
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relaxing diaphragm moves superiorly (up) |
expiration |
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elastic fibers in lung recoil |
expiration |
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volumes of thorax and lung decrease simultaneously, increasing the pressure |
expiration |
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use of muscles of anterior abdominal wall to compress viscera up under diaphragm |
expiration (forced) |
