CONTENTS OF THE THORAX 



457 



diaphragm (12, 12), is seen separating the stomach (alO, 11) and the 

 liver (a small section of the left lobe of which ';niy is shown) from the lungs 



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(14) and the heart (15), while the trachea (13, 13) is seen entering through 

 its anterior boundary, below the cesophagus (9, 9, 9), and the aorta passes 

 close to the spine above the latter. 



