develops from ciliated columnar cell of tracheobronchial tree FMA:70542 2010-08-24T03:38:29Z A ciliated columnar cell found in the trachea and bronchus. Vary from low to tall columnar; possesses up to 300 cilia at its surface, interspersed with long irregular microvilli with the cilia varying in length from about 6um in the trachea to about 4um in the terminal bronchioles; driving force of the ciliary current in the bronchial tree. epithelial cell of tracheobronchial tree intermediate epitheliocyte multi-ciliated epithelial cell Homo sapiens