Question

Sort these structures in the order that air would pass through them during inhalation.

1. Aveloar sac
2. Alveoli
3. Respiratory Bronchiole
4. Alveolar Duct

Answer 1

During inhalation, air passes through the respiratory bronchioles, then to the alveolar ducts, alveolar sacs, and finally, the alveoli where gas exchange occurs.

Step-by-step explanation:

The correct order in which air passes through the structures during inhalation, from the trachea to the alveoli, is as follows:

1. Respiratory Bronchiole
2. Alveolar Duct
3. Alveolar Sac
4. Alveoli

During inhalation, air first enters through the respiratory bronchioles, which are small passages in the lungs that branch off the larger bronchioles. Next, air moves into the alveolar ducts, thin-walled passages that lead to the alveolar sacs. These sacs are clusters of spherical alveoli, which are the tiny air sacs where gas exchange with the blood occurs.