Surgical treatment; a practical treatise on the therapy of surgical diseases for the use of practitioners and students of surgery . ernal articulation and thence to the apex. THE THORAX 425 The right auricle lies behind the right border of the sternum and the sternal ends of thethird, fourth, fifth and sixth right costal cartilages. The right ventricle constitutes thelarge anterior chamber of the beart. It lies between the third and the seventh costalcartilages on the right side of the median line. The left auricle is behind the second leftinterspace and the third left costal cartilage. The le
Surgical treatment; a practical treatise on the therapy of surgical diseases for the use of practitioners and students of surgery . ernal articulation and thence to the apex. THE THORAX 425 The right auricle lies behind the right border of the sternum and the sternal ends of thethird, fourth, fifth and sixth right costal cartilages. The right ventricle constitutes thelarge anterior chamber of the beart. It lies between the third and the seventh costalcartilages on the right side of the median line. The left auricle is behind the second leftinterspace and the third left costal cartilage. The left ventricle is behind and to the leftof the right verticle (Fig. iioi). Paracentesis of the right auricle of the heart is done to save life in cases inwhich there is obstruction in the pulmonary circulation. An aspirating needleabout i mm. in diameter is used, connected with a vacuum bottle. It isdirected backward and inserted at the third right intercostal space close tothe sternum. It passes through the skin, fascia, pectoralis major, intercostalmuscle, intervening deep fascia, a few fibers of the triangularis sterni, con-. Fig. iioi.—The location of the chambers of the heart. The precordial triangle is that areawhich is not covered by the pleura and through which the heart may be approached foroperation. nective tissue of the anterior mediastinum, pleura, margin of the right lung,and wall of right auricle. The flow of blood announces the entrance of theneedle into the heart. When the requisite amount of blood has been with-drawn the needle is quickly removed. The auricle is more easily aspiratedthan the ventricle because it is not in motion so strongly, its position is morefixed, and its anteroposterior diameter is greater. Paracentesis of the right ventricle of the heart is done for the same condi-tions as aspiration of the auricle. Suction is not necessary because of the 426 SURGICAL TREATMENT greater pressure in the ventricle. The trocar and canula, or ne
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsurgery, bookyear1920
