Trachea Structure And Function: Understanding Its Role In Respiration And Protection
The trachea is lined by a pseudostratified ciliated columnar epithelium, featuring multiple layers of nuclei and tall, columnar-shaped cells adorned with cilia. These cilia propel mucus, entrapping inhaled particles and clearing them towards the pharynx. Goblet cells secrete mucus, while Clara cells produce surfactant, reducing airway surface tension. This epithelium protects the trachea from pathogens,…