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MANUAL OF PHYSIOLOGY. 



of lymphoid tissue from one another. Through the convex side 

 of the capsule the lymph channels enter and pour their contents. 

 The lymph then flows through irregular paths, which lie between 

 the lymph follicles next to the capsule and trabeculse, and lead to 

 the concavity of the gland from which the efferent vessel escapes. 

 These lymph glands occur in groups in the flexures of the 

 limbs, the recesses of the neck, and the thoracic and abdominal 



FIG. 85. 



Section through the central or medullary part of a Lymphatic Gland, 

 showing adenoid tissue (a) containing capillaries (6) and a fibrous trabecula 

 (c) containing an artery. (Cadiat.) 



cavities, a large number being placed in the mesentery, in the 

 course of the intestinal lacteals. 



In the submucous tissue of the intestine there is much of this 

 lymphoid tissue, arranged in numerous small follicles, which, 

 doubtless, have a similar function to the lymph glands found 

 elsewhere. 



There are various modes of origin of the lymphatic vessels 

 which are more or less characteristic of the different parts in 

 which they occur. 



