Lower airway comprises which structures?

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Prepare for the CIEMT Medical and Physiology Exam. Study with flashcards and multiple-choice questions that feature explanations. Ace your test!

Multiple Choice

Lower airway comprises which structures?

Explanation:
The lower airway includes the parts that carry air down into the lungs and the lungs themselves where gas exchange happens. The trachea and bronchi are the main conducting passages that move air from the upper airway into the deeper parts of the lung. The lungs contain the smaller airways and the alveoli, the sites of gas exchange. In contrast, the nose, mouth, and pharynx are part of the upper airway, and the diaphragm is a breathing muscle, not an airway structure. So the set that best fits the lower airway is the trachea, bronchi, and lungs.

The lower airway includes the parts that carry air down into the lungs and the lungs themselves where gas exchange happens. The trachea and bronchi are the main conducting passages that move air from the upper airway into the deeper parts of the lung. The lungs contain the smaller airways and the alveoli, the sites of gas exchange. In contrast, the nose, mouth, and pharynx are part of the upper airway, and the diaphragm is a breathing muscle, not an airway structure. So the set that best fits the lower airway is the trachea, bronchi, and lungs.

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