👉 Pleurenchymatous is a biological term used to describe the epithelial lining of the respiratory tract. It refers to the thin, fibrous tissue found on the walls and surfaces of the respiratory passages, including the nasal cavity, pharynx, larynx, trachea, bronchi, and bronchioles. Pleurenchymatous cells are specialized epithelial cells that line the inner lining of these respiratory passages. These cells form a network of interconnected tubes