Alveoli

Science / Biology / Alveoli: Tiny, thin-walled, inflatable sacs in the lungs where oxygen and carbon dioxide are exchanged.

Airway

Health / First Aid / Airway: The passages which transfer air from the outside environment to the lungs: the tracha, bronchi, bronchioles and alveoli MORE

Lungs

Science / Biology / Lungs: Sac-like structures of varying complexity where blood and air exchange oxygen and carbon dioxide; connected to the outside by a series of tubes and a small opening. In humans, the lungs are situated i MORE

Bronchioles

Science / Biology / Bronchioles: Small tubes in the lungs that are formed by the branching of the bronchi; terminate in the alveoli. MORE

Asthma

Health / Acupuncture / Asthma : A common disorder in which chronic inflammation of the bronchial tubes (bronchi) makes them swell, narrowing the airways. Asthma involves only the bronchial tubes and does not affect the air sacs ( al MORE

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