. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. left lung abruptly passes outward anddownward in a direction represented by a line drawnfrom the centre of the sternum opposite the fourth costo-sternal articulation, to a point corresponding to the apexof the heart. The edge of the right lung continues down-ward in a straight line as far as the sixth costo-sternalarticulation, when it follows the direction of the carti-lage of the sixth rib. At the lower part of the chest-wall the inferior margin of the lung cor
. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. left lung abruptly passes outward anddownward in a direction represented by a line drawnfrom the centre of the sternum opposite the fourth costo-sternal articulation, to a point corresponding to the apexof the heart. The edge of the right lung continues down-ward in a straight line as far as the sixth costo-sternalarticulation, when it follows the direction of the carti-lage of the sixth rib. At the lower part of the chest-wall the inferior margin of the lung corresponds with the Fig. (Aiter Dwight.) 67 REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. sixth rib in*the mammary line, with the eighth rib in theaxillary line, and with the tenth rib in the vertical line letfall from the angle of the scapula. The whole lower limit of the lung is represented onthe right side by a line drawn from the junction of thesixth costal cartilage with the sternum to the tenth dor-sal spine. The lower border of the lungs ascends witli Zntlmammaryart. v J Comesner&i. p/irenicz. Fig. 3903.—The Thoracic Contents as Seen on Removal of the Chest wall. otny, by permission.) expiration and descends with inspiration to the extent ofone inch or even more. The position of the great fissurein each lung may be ascertained approximately by drawinga line from the second dorsal spine to the sixth rib in thenipple line ; and the smaller fissure of the right lung ex-tends from the middle of the foregoing to the junction ofthe fourth costal cartilage with the sternum (R. J. God- lee). But the level of the pleurals lower than that of thelung, its lower limit behind corresponding most fre-quently with the head of the twelfth rib or even lower,and from this point it ascends and passes around the chestbehind the seventh costal cartilage to the sternum. Onthe left side the edge of the pleura extends over the peri-cardium considerably beyond the corresp
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmedicine, bookyear188
