What is the primary function of the bronchi in the respiratory system?

• A. To filter and humidify the air entering the lungs
• B. To produce surfactant to reduce surface tension in the alveoli
• C. To exchange oxygen and carbon dioxide with the blood
• D. To transport air from the trachea to the alveoli

Answer: (D)

Verified step by step guidance

1. Begin by understanding the structure of the respiratory system. The bronchi are part of the airway that branches from the trachea into the lungs.
2. Recognize the role of the bronchi in the respiratory system. They serve as passageways for air to move from the trachea into the lungs.
3. Consider the function of the bronchi in relation to other parts of the respiratory system. Unlike the alveoli, which are involved in gas exchange, the bronchi primarily transport air.
4. Identify the primary function of the bronchi. They are responsible for conducting air to the alveoli, where gas exchange occurs.
5. Conclude that the bronchi's main role is to transport air from the trachea to the alveoli, facilitating the process of respiration.