English

Details of the upper respiratory tract.

main parts of the lower respiratory tract: 1. Trachea
2. Mainstem bronchus
3. Lobar bronchus
4. Segmental bronchus
5. Bronchiole
6. Alveolar duct
7. Alveolus

Noun

respiratory tract ‎(plural respiratory tracts)

1. (anatomy) The passages, divided into an upper and a lower part, through which air enters and leaves the body, including the mouth, nose and nasal passages, pharynx, larynx, trachea, bronchi and conducting bronchioles, sometimes further including the respiratory bronchioles, alveolar ducts and alveoli.

Translations

See also

• respirologist
• pulmonology