part of part of has part has part has_part has characteristic develops from develops from has characterizing marker set columnar/cuboidal epithelial cell multiciliated columnar cell of tracheobronchial tree 2010-08-24T03:38:29Z FMA:70542 ciliated columnar cell of tracheobronchial tree A multi-ciliated epithelial cell located in the trachea and bronchi, characterized by a columnar shape and motile cilia on its apical surface. These cilia facilitate mucociliary clearance by moving mucus and trapped particles toward the pharynx. The marker set C1orf194, MS4A8 can identify the Human cell type multiciliated columnar cell of tracheobronchial tree in the lung with a confidence of 0.86 (NS-Forest FBeta value). These cells possess numerous cilia on their surface, typically ranging from 200 to 300 per cell. The cilia vary in length, measuring between 6 to 7 μm in the upper airways (trachea) and becoming shorter, around 4 μm, in the smaller airways (terminal bronchioles). These cells form a two-layered 'coat' in the airway: the lower 'sol' layer is watery, allowing the cilia to beat in coordinated waves, while the upper 'gel' layer is thick and sticky, trapping inhaled particles. epithelial cell of tracheobronchial tree intermediate epitheliocyte respiratory tract multiciliated cell motile cilium multiciliated tracheobronchial epithelium