respiratory tracts
Lung and airway
The respiratory tract is the system of passages through which air travels during breathing—from the nose and mouth through the throat, windpipe, and bronchial tubes to the lungs.
Medical contexts often distinguish between upper respiratory tract (nose, throat) and lower respiratory tract (lungs, bronchi): an upper respiratory tract infection, The virus affects the respiratory tract.
- bronchiMain lung air passages
- lungsRespiratory chest organs
- airwaysRespiratory or flight paths
- alveoliLung's gas-exchange chambers
- breathingPulmonary gas exchange
deep breath · breath sounds · pharynx · nasal cavity · inhalation · trachea · ventilation · mucus · nose · oxygenation · cilia · nebulization · asthma · intubation · pneumonia · chest cold · spirometry · shortness of breath
respiratory tractsdigestive system
Organs processing ingested food
gastrointestinal tract · alimentary canal · circulatory system · nervous system · reproductive system
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