Research on the Human Bronchial Fibroblasts is essential to the study of airway obstruction, bronchial hyper-responsivenesssubepithelial fibrosis in asthma, airway remodeling in COPD, idiopathic pulmonary fibrosis (IPF), post-transplant bronchiolitis obliterans, and radiation-induced pneumonitis. The lungs are the central organs of the human respiratory system, responsible for gas exchange, delivering oxygen to the blood while removing waste (carbon dioxide). They are a pair of spongy, pinkish-gray organs located in the chest, with their surfaces covered by the pleura. The lungs are connected to the trachea through the bronchi, and their interiors are filled with alveoli, which provide a large surface area for efficient gas exchange during respiration. The Human Bronchial Fibroblasts are to be used with Human Bronchial Fibroblast Medium (Cat. No. ACM0147). This product is intended for laboratory in vitro use only. It is not intended for diagnostic, therapeutic, or clinical applications.