The conducting zone of the respiratory system is made up of the trachea, bronchi, bronchioles, and terminal bronchioles. It is composed of the 1st through the 16th division of the respiratory tract.
The respiratory zone is the site of oxygen and carbon dioxide gas exchange, and is composed of the respiratory bronchioles, alveolar ducts, and alveoli.
borders (anterior, posterior, inferior)
surfaces (costal, mediastinal, diaphragmatic)
trachea (tracheal rings, carina) • bronchi • main bronchus (right, left) • lobar/secondary bronchi (eparterial bronchus) • segmental/tertiary bronchi (bronchopulmonary segment) • bronchiole • terminal bronchiole
respiratory bronchiole • alveolar duct • alveolus • alveolar-capillary barrier
parietal pleura (cervical, costal, mediastinal, diaphragmatic) • visceral pleura • pulmonary ligament • recesses (costomediastinal, costodiaphragmatic) • pleural cavity
