Conducting zone

From Wikipedia, the free encyclopedia

The conducting zone of the respiratory system is made up of the trachea, bronchi, bronchioles, and terminal bronchioles.

The conducting zone represents the 1st through the 16th division of the respiratory tract.

[edit] Functions

1. Low resistance pathway for airflow
2. Defence
3. Warms and moistens air
4. Phonates

the respiratory zone is the actual site of gas exchange ,it is composed of the respiratory bronchioles, alveolar ducts, and alveoli

[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 • lingula • apex • base • root • cardiac notch • cardiac impression • hilum • 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