It will be recalled that a thin film of rather viscid mucus overlies the ciliated respiratory epithelium and that this ... bed that is very wide but rapidly narrows as it approaches the trachea.

trachea close trachea The major airway in the respiratory system, also known as the windpipe, ... ciliated epithelium and goblet cells to clean the air before it reaches the lungs; ...

The air passages are lined with mucous membrane composed mainly of ciliated epithelium. Cilia constantly clean the tract and carry foreign matter upwards for swallowing or expectoration. Trachea. The ...

The history of science is a series of paradigm shifts—conventional theories debunked and replaced by new discoveries. Kanso Bioinspired Motion Lab at USC Viterbi School of Engineering has made a habit ...

According to a new study, patients with allergic asthma have some protection against COVID-19, as type 2 inflammation can reduce the replication of severe acute respiratory syndrome coronavirus 2 ...