title: Mechanisms of unidirectional flow in parabronchi of avian lungs: measurements in duck lung preparations.
mesh_terms: D000400:Air Sacs / Q000033:anatomy & histology; D000403:Airway Resistance; D000818:Animals; D001696:Biomechanical Phenomena; D001980:Bronchi / Q000502:physiology; D004372:Ducks / Q000033:anatomy & histology / Q000502:physiology*; D008168:Lung / Q000502:physiology*; D012123:Pulmonary Ventilation