Correct order in which inhaled air sequentially moves through the structures of the respiratory passageways starting from the mouth is : Nostrils →pharynx →larynx →trachea →alveoli.
The process of taking air into the lungs is known as inhalation, and process of breathing it out is exhalation and air is inhaled through the mouth or the nose. The sequence of air passage during inhalation is: Nostrils →pharynx →larynx →trachea →alveoli.
Organ system that helps in the breathing process is called respiratory system. It includes nasal airway (Nose, Pharynx, Larynx, and Trachea), Lungs and blood vessels for the gaseous exchange.
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