In the air passageway, the incoming air passes from the pharynx to the?
Correct answer: D. Larynx
- A. Bronchi
- B. Bronchioles
- C. Windpipe
- D. Larynx
Explanation
The incoming air passes from the pharynx to the larynx then to the windipe (trachea). Larynx is the voice box, and it is located just below the pharynx. The epiglottis, a small flap of tissue, covers the larynx during swallowing to prevent food and liquid from entering the lungs. Thus the correct answer is option D.
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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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