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The Respiratory System, Kennedy Abraham, Per.5 (definitions of lung…
The Respiratory System, Kennedy Abraham, Per.5
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breathing mechanism
Air entering lungs- Thoracic cavity increases, diaphragm contract, ribs and sternum raise outward
Air exiting lungs- Ribs and sternum go back to the normal size, diaphragm is arched upwards and relaxed, thoracic cavity is decreased
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