The tracheal epithelium is populated by several cell types, each with specific functions:
- Ciliated Cells: These cells have cilia on their apical surface, moving mucus and trapped particles towards the pharynx. - Goblet Cells: These are mucus-secreting cells that trap debris and pathogens. - Basal Cells: These are stem cells that can differentiate into other cell types to maintain and repair the epithelium. - Brush Cells: These are columnar cells with microvilli, potentially involved in sensory functions. - Clara Cells: Also known as club cells, these cells secrete a surfactant-like substance that helps in reducing surface tension and detoxifying harmful substances.
