Patient was educated on anatomy of respiratory tract and its parts as follows:

1. Anatomically, the respiratory tract is basically divided into the following:

• Upper respiratory tract
• Lower respiratory tract

2. Upper respiratory tract includes nose and nasal cavities, nasopharynx, and part of larynx above the vocal cords.
3. Upper respiratory tract is mainly a conduction pathway, helping to transport air breathed in through the nose to the structures of lower respiratory tract.
4. Lower respiratory tract includes part of larynx below the vocal cords, trachea, bronchi, bronchioles, and alveoli.
5. Initial part of lower respiratory tract is conductive in nature too, helping to transport the air received from the upper respiratory tract to the later part of the lower respiratory tract, comprising of respiratory bronchioles and alveoli, the sites of gas exchange in the lungs.