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Upper respiratory tract Composed of the nose, the pharynx, and the larynx, the organs of the upper respiratory tract are located outside the chest cavity. Nasal cavity: Inside the nose, the sticky mucous membrane lining the nasal cavity traps dust particles, and tiny hairs called cilia help move them to the nose to be sneezed or blown out. Sinuses: These air-filled spaces alongside the nose help make the skull lighter. Pharynx: Both food and air pass through the pharynx before reaching their appropriate destinations. The pharynx also plays a role in speech. Larynx: The larynx is essential to human speech.
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