Respiratory zone

From Wikipedia, the free encyclopedia

The respiratory zone is the site of O₂ and CO₂ exchange with the blood.

The respiratory bronchioles and the alveolar ducts are responsible for 10% of the gas exchange. The alveoli are responsible for the other 90%.

The respiratory zone represents the 16th through the 23rd division of the respiratory tract.

[edit] See also

• Conducting zone

[edit] External links

• Flash overview at mcgill.ca
• Diagram at gdn.edu

v • d • e Anatomy: respiratory system Upper respiratory tract Nose • Nasal cavity • Pharynx • Larynx Lower respiratory tract Trachea • Lungs (Bronchi, Alveoli, Conducting zone, Respiratory zone)

v • d • e Anatomy of torso, respiratory system: Lungs and related structures lungs right/left · apex/base/root/hilum · cardiac impression/cardiac notch/lingula borders (anterior, posterior, inferior) surfaces (costal, mediastinal, diaphragmatic) fissures (oblique, horizontal) conducting zone trachea (tracheal rings, carina) · bronchi · main bronchus (right, left) · lobar/secondary bronchi (eparterial bronchus) · segmental/tertiary bronchi (bronchopulmonary segment) · bronchiole · terminal bronchiole respiratory zone respiratory bronchiole · alveolar duct · alveolus · alveolar-capillary barrier pleurae parietal pleura (cervical, costal, mediastinal, diaphragmatic) · visceral pleura · pulmonary ligament · recesses (costomediastinal, costodiaphragmatic) · pleural cavity