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