| Anatomy of the Human Body > Illustrations > Fig. 975 | CONTENTS · ILLUSTRATIONS · SUBJECT INDEX |
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| Schematic longitudinal section of a primary lobule of the lung (anatomical unit); r. b., respiratory bronchiole; al. d., alveolar duct; at., atria; a. s., alveolar sac; a, alveolus or air cell; p. a.: pulmonary artery: p. v., pulmonary vein; l., lymphatic; l. n., lymph node. (Miller.) |
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