Effect of air pollution on humman health (part 2)
Nasal cavities: Filter the inhaled air and also gives us a sense of odor. Pharynx: Performs activities in the respiratory and the digestive tracts. Larynx: The path connecting the pharynx and the trachea and produces the sound with the aid of vocal folds. Trachea: The trachea forms the link with the... ->











