Quain's elements of anatomy . 30). The right auricle (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 left anricle 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 ver
Quain's elements of anatomy . 30). The right auricle (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 left anricle 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 vertelDra 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 rigid ventricle extends from above down fromthe thud 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-diageammatic representation of the chest, to show the position OP THE HEART AND GREAT VESSELS, AS SEEN BEHIND THE STERNUM AND COSTAL CARTILAGES (A. Thomsoii, modified from Luschka). | The lungs have shrunk from the front of the chest. The heart is sliglitly higherthan during life, and the aorta more to the right, a, right clavicle ; b, scalenusanticus muscle; c, sterno-mastoid muscle divided ; d, pectoral muscles divided;+, axillai-y nerves above the subclavian artery; c, trachea below the isthmus of thethyroid body ; /, /, upper surface of the diaphragm ; g, g, lungs ; g, on the left side,apex of the lung appearing in the neck ; h, right, li, left lobe of the liver; i, stomach ;A;, k, transverse colon ; I, to X, first to tenth ribs near their cartilages ; 1, jilaced onthe lower i3art 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 oft
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
