. Quain's elements of anatomy . 430). The right cmrich (3) lies behind the sternal ends of thethird, fourth and fifth costal cartilages, and the intervening portions ofthe intercostal spaces, and is also partly covered by the right edge of thesternum. The point of its auricular appendage is exactly behind themiddle line on a level with the upper border of the third costal carti-lages (3). The Jpft auricle extends vertically from the level of the lowerborder of the second left cartilage to the upper border of the fourth(sternal end) ; and in breadth corresponds to the body of the eighthdorsal v
. Quain's elements of anatomy . 430). The right cmrich (3) lies behind the sternal ends of thethird, fourth and fifth costal cartilages, and the intervening portions ofthe intercostal spaces, and is also partly covered by the right edge of thesternum. The point of its auricular appendage is exactly behind themiddle line on a level with the upper border of the third costal carti-lages (3). The Jpft auricle extends vertically from the level of the lowerborder of the second left cartilage to the upper border of the fourth(sternal end) ; and in breadth corresponds to the body of the eighthdorsal vertebra and the head of the adjoining rib. The apex of itsappendage (4) is in the lower part of the second intercostal space orbehind the third costal cartilage, about an inch and a quarter from theleft of the sternum. The right ventricle extends fiom above down fromthe third to the sixth cartilages on the left side. The conus arteriosusis its most projecting part, being uncovered by lung. The auriculo 492 THE HEART. Fig. Fig. 430.—Semi-diagrammatic REPRESENTATION op the chest, to show the position OF THE HEART AND GREAT VESSELS, AS SEEN BEHIND THE STERNUM AND COSTAL CARTILAGES (A. Tliomson, modified from Lusclika). ^ Tlie lungs have shrunk from the front of the chest. The heart is slightly higherthan during life, and the aorta more to the right, a, right clavicle ; h, scalenusanticus muscle; c, sterno-mastoid muscle divided; d, pectoral muscles divided;+, axillary nerves above the subclavian ai-tery; c, trachea below the istlnnus of thethyroid body ; /, /, upi^er surface of the diaphragm ; g, g, lungs ; g, on the left side,apex of the lung appearing in the neck ; h, right, h, left lobe of the liver; i, stomach ;k, Jc, transverse colon ; I, to X, first to tenth ribs near their cartilages ; 1, placed onthe lower part of the manubrium of the sternum, and over the arch of the aorta(indicated by dotted lines); 2, placed in the second left intercostal space, on the stem ofth
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
