First Time User? Enroll now.
Notice of Data Security Incident
COVID-19: Vaccine information, testing, treatment, and additional resources
Home > Health Library > Respiratory System
The upper respiratory tract (upper airway) consists of the nose, mouth, sinuses, and throat.
The lower respiratory tract consists of the trachea, bronchial tubes, and the structures inside the lungs.
Current as of:
July 6, 2021
Author: Healthwise StaffMedical Review: E. Gregory Thompson MD - Internal MedicineAdam Husney MD - Family Medicine
Current as of: July 6, 2021
Author: Healthwise Staff
Medical Review:E. Gregory Thompson MD - Internal Medicine & Adam Husney MD - Family Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2021 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.