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Home Q & A Board Biology-Related Homework Help General Biology
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sumirahk sumirahk
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11 years ago
   
1) volume of the thoracic cavity increases

   
2) lungs are drawn outward and expand

   
3) rib cage moves up and out and the floor of the chest cavity moves downward

   
4) air moves into the lungs because pressure in the lungs is less than in the environment

   
5) air pressure in the thoracic cavity decreases

   
6) external rib muscles and diaphragm contract
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#1
11 years ago
6) external rib muscles and diaphragm contract
3) rib cage moves up and out and the floor of the chest cavity moves downward
1) volume of the thoracic cavity increases
5) air pressure in the thoracic cavity decreases
4) air moves into the lungs because pressure in the lungs is less than in the environment
2) lungs are drawn outward and expand
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