Chest cavity is bounded by ribs and muscles on the sides, while the floor of chest cavity is called:
Correct answer: D. Diaphragm
- A. Pleura
- B. Alveoli
- C. Chest cage
- D. Diaphragm
Explanation
Chest cavity is bounded by ribs, muscles and diaphragm
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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