The end of the airways after LadyofHats's diagram: eleven structures – the respiratory bronchiole with its mucosa and mucous glands, the alveolar duct, two alveolar sacs, one cut open to its atrium and alveoli, the capillary network, the branches of the pulmonary artery and vein, and the…
A real anatomical diagram. Hover any part to see its name, click to answer the quiz question.