. The anatomy of the domestic animals . Veterinary anatomy. THE THORAX AND PLEURAE—THE LUNGS 547 THE THORAX AND PLEURA The ribs are in general strongly curved in most of the improved breeds, so that the thorax is rounded. The pleural sacs extend forward to the first intercostal space. The diaphragmatic line of pleural reflection begins at or a little above the sternal end of the seventh rib, and extends in a gentle curve to about the middle of the last rib, along the medial face of which it continues. (When a fifteenth rib is present—a very common occurrence—it does not affect the arrangement
. The anatomy of the domestic animals . Veterinary anatomy. THE THORAX AND PLEURAE—THE LUNGS 547 THE THORAX AND PLEURA The ribs are in general strongly curved in most of the improved breeds, so that the thorax is rounded. The pleural sacs extend forward to the first intercostal space. The diaphragmatic line of pleural reflection begins at or a little above the sternal end of the seventh rib, and extends in a gentle curve to about the middle of the last rib, along the medial face of which it continues. (When a fifteenth rib is present—a very common occurrence—it does not affect the arrangement of the pleura or diaphragm). Trachea QiJsophagus Apical lobe liac lube Cardiac lobe Diaphrag- matic lobe. Diaphrag- iiintic lobe Fig. 486.—Lungs and Heaet of Pig; Venthal View. L. i., Intermediate lobe of right lung; F. diaphragmatic surface of lungs; 1, left brachial artery; 2, brachio- cephalic artery; S, apex of heart; ^, pericardium (cut edge); 5, plica vense cava; 6, posterior vena cava; 7, ceaophagua; 8, ventral cesophageal nerve trunk; 9, aorta. THE LUNGS The right lung has four lobes—apical, cardiac, diaphragmatic, and intermedi- ate. In some cases the apical lobe is divided by a fissure into two parts; sometimes it is fused with the cardiac lobe. The left lung may be regarded as having two or three lobes. The diaphragmatic lobe is clearly marked off by a fissure. The part. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sisson, Septimus, 1865-1924. Philadelphia ; London : W. B. Saunders Company
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