Isabelo semihla ngemihla -Ukukhohlela kunye neLoquat Ukukhwehlela luphawu oluqhelekileyo lwendlela yokuphefumula, ebangelwa ukuvuvukala, izinto zangaphandle, ukuvuselela umzimba okanye imichiza ye-trachea, i-bronchial mucosa, okanye i-pleura.Ibonakaliswa yi...