ABSORPTION OF PROTEIDS FROM THE INTESTINES 



365 



study of the composition of their discharge during active absorption con- 

 tributes to our knowledge of the course taken by the different absorption 

 products. 



Absorption of Proteids from the Intestines. Proteid is absorbed 

 chiefly in the small intestine, though just exactly how cannot at present be 

 affirmed. In the preceding chapter the cleavage products of proteid diges- 



FIG. 281. 



FIG. 282. 



FIG. 281. Superficial Lymphatics of the Forearm and, Palm of the Hand, J. 5; Two small 

 glands at the bend of the arm; 6, radial lymphatic vessels; 7, ulnar lymphatic vessels; 8, 8, 

 palmar arch of lymphatics; 9, 9', outer and inner sets of vessels; b, cephalic vein; d, radial 

 vein; e, median vein; /, ulnar vein. The lymphatics are represented as lying on the deep fascia. 

 (Mascagni.) 



FIG. 282. Lymphatic Vessels of the Head and Neck and the Upper Part of the Trunk. (Mas- 

 cagni.) $. The chest and pericardium have been opened on the left side, and the left mamma de- 

 tached and thrown outward over the left arm, so as to expose a great part of its deep surface. The 

 principal lymphatic vessels and glands are shown on the side of the head and face, and in the neck, 

 axilla, and mediastinum. Between the left internal jugular vein and the common carotid artery, 

 the upper ascending part of the thoracic duct marked i, and above this, and descending to 2, the 

 arch and last part of the duct. The termination of the upper lymphatics of the diaphragm in the 

 mediastinal glands, as well as the cardiac and the deep mammary lymphatics, is also shown. 



