Respiratory system Definition, Organs, Function, & Facts

Respiratory system Definition, Organs, Function, & Facts respiratory system During inspiration, fresh air enters the respiratory system through the pared external nares andor the oral cavity to the pharynx Air muscular system Such structures include the nasal cavity, pharynx, larynx, trachea, and most of the bronchial tree The respiratory zone includes all the organs and structures

muscular system During inspiration, fresh air enters the respiratory system through the pared external nares andor the oral cavity to the pharynx Air

digestive system Respiratory system Among quadrupeds, the respiratory system generally includes tubes, such as the bronchi, used to carry air to the lungs, Jeremy P T Ward, Jane Ward, Richard M Leach Lungs The respiratory system consists of a pair of lungs within the thoracic cage Its main