PCD/PRIMARY CILIARY DYSKINESIA AND KARTEGENER’S SYNDROME. PCD/Kartegener’s syndrome is a rare genetic disorder, which is characterized by defects or complete loss of ciliary action which is covering the entire respiratory tract thereby causing defective mucosal clearance. Cilia are small hair like structures, which are located in the respiratory tract(upper and lower), sinuses, Eustachian tube of the ear, miaddle ear and flagellas of sperms. These cilia function as a protective structures, trapping invading particles, to enter the respirtatory tract. Moreover, their chief function is swaying movement, which generate currents thereby helping in transport or expulsion of mucous towards the throat in case or respiratory tract and ear. In case of sperm cells and fallopian tube, they help in t...