The chest cavity is bounded by ribs and muscles on the sides, while the floor of the chest cavity is called:
Correct answer: D. Diaphragm
- A. Pleura
- B. Alveoli
- C. Chest cage
- D. Diaphragm
Explanation
Diaphragm forms the floor of the chest cavity.
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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