The upper section of the model highlights key anatomical features of the human respiratory system, including the nasal and oral cavities, trachea, bronchia, and the bronchial tree within the pulmonary lobe. It also features dissected views of the right and left lungs, the heart, pulmonary blood vessels, and a detailed depiction of the diaphragm with attached muscles. The lower part of the model magnifies the pulmonary acinus, exhibiting pulmonary alveoli, alveolar saccules, bronchial arteries and veins, and the intricate alveolar capillary network. The entire model is securely mounted on a wooden board and includes an informative key card.