THE HEART 



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the most part, by the right ventricle, but its left extremity 

 corresponds to a part of the left ventricle. 



{Photo by Alinari. 



FIG. 1 06. Anterior Aspect of the Chest, showing the surface relations 

 of the heart and great vessels, the lungs and the pleural sacs. 



Border of lung. 



-- Lines of pleural reflection. 



The left border of the heart can be represented by a line 

 which begins at the apex and extends upwards and medially, 

 with a gentle convexity to the left, to reach the lower part of 



