Nose/ Nasal cavity (external nose, nasal cavity and nasal conchae) functions in providing airway, moistens/ warms entering air, houses olfactory receptors, filters inspired air and serves as resorting chamber for speech. Located on exterior of face, inferior to eyes. Paranasal Sinuses Located in frontal, sphenoid, ethmoid and maxillary bones. Functions to lighten skull, secrete mucus and helps warm/ moistens air. Pharynx Located on posterior to upright epiglottis. Functions as passageway for air and food