Airways are all parts of the respiratory system that connect the "outside world" and the alveoli. In a narrower sense, the airways are only the air-conductive portions of the respiratory tract, in clinical practice, the gas-exchanging parts (alveoli) are usually included in this term.The airways consist of a series of hollow organs, which are used to transport the air in alveolar system of the lung. To the airways. They include the following structures:Upper respiratory tract
Lower respiratory tract
**terminal bronchioles
**Respiratory bronchioles (bronchioles respiratorii)
Source: LadyofHats
