Upper Respiratory Tract, Lower Respiratory Tract, Nasal Cavity, filters, warms, & moistens air, Pharynx, Passageway for air and food, Glottis, opening to larynx, Epiglottis, Flap that prevents food from entering, Trachea, "windpipe" and passageway of air to bronchi, Bronchus, passageway of air to lungs, Bronchioles, passgeway of air to alveoli, Lungs, Alveoli, where gas exchange happens, Diaphram, Larnyx, Voice box.

Respiratory Tract and Functions

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