Bacterial infection can cause this organ to develop a type of granuloma called Ghon lesions. Berylliosis is an occupational disease affecting this organ. A carcinoma of this organ is named for its small, flat, oat-like appearance (15[1])under a microscope. The phospho·lipid D.P.P.C is the main constituent (15[1])of this organ’s namesake surfactant. Drugs such as benazepril inhibit one (*) enzyme found in the capillaries of this organ, which converts angiotensin one to angiotensin two. This organ is surrounded by a serous membrane called the pleura. (10[2])A spirometer tests the function of this organ, which is impaired in COP·D and emphysema. Thin-walled evaginations within these organs named alveoli are the site of gas exchange. The bronchioles terminate in, for 10 points, what pair of organs that are the primary organs of the respiratory system? ■END■