Human Respiratory System And Alveolar Structure — a labelled NEET Biology diagram with a definitions lexicon.
Human Respiratory System and Alveolar Structure Labelled parts: Trachea, Bronchus, Bronchiole, Lungs, Alveolus, Respiratory Membrane, Alveolar Epithelium, Capillary Endothelium, Basement Membrane, RBCs. Tiny air sacs in the lungs where gas exchange occurs. The thin barrier comprising alveolar epithelium, basement membrane, and capillary endothelium allowing gas diffusion. Small branches of the bronchial tree leading directly to the alveoli.