Image Result For Cilia In Nasal Cavity
Lining the nasal cavity is a mucous membrane rich with blood vessels. The increased surface area and the many blood vessels enable the nose to warm and humidify incoming air quickly. Cells in the mucous membrane produce mucus and have tiny hairlike projections cilia ..Cilia or small hairs which project from the epithelium and line the nasal mucosa create motions which drain mucus from the nasal passage to the throat from where it is swallowed and digested by stomach juices. The activity level of cilia is dependent on temperature and in cold temperatures cilia become less active..