The respiratory tract is the path of air from the nose to the lungs. It is separated into two portions: Upper Respiratory Tract and the Inferior Respiratory Tract. Contained in the upper respiratory tract are the Nostrils, Nasal Cavities, Pharynx, Epiglottis, and the Larynx. The inferior respiratory tract contains of the Trachea, Bronchi, Bronchioles, and the Lungs.
- Track 1-1 The respiratory system
- Track 2-2 Respiratory diseases
- Track 3-3 Respiratory Activity