Respiratory system
Current as of: June 9, 2019
Author: Healthwise Staff
Medical Review:E. Gregory Thompson, MD – Internal Medicine & Adam Husney, MD – Family Medicine & Robert L. Cowie, MB, ChB, MD, MSc, FCP(SA), MFOM – Pulmonology
The upper respiratory tract (upper airway) consists of the nose, mouth, sinuses, pharynx (upper section of the throat), and voice box (larynx). The lower respiratory tract consists of the windpipe (trachea), bronchial tubes, and lungs. The bronchial tubes carry air into the lungs and branch into smaller and smaller…