STRUCTURE OF LYMPHATIC GLANDS. 



195 



the veins becjin, and tend to the hilus alongside the arteries. The 

 branches which run along the trabeculas are in part conducted to the 



Fig. 13L 



Pig. 13L — Section of the MEDULLAnr Substance of a Lymphatic Gland (Ox). 

 300 Diameters. (Von Recklinghausen). 



«, a, a, follicular or lymphoid cords ; c, lymph-sinus ; b, h, trabeculaa ; d, d, blood- 

 vessels. 



coat of the gland to be there distributed : some of their branches 

 pass across the lymph-sinus to reach the glandular substance. The 

 blood-vessels of the gland pulp are supported by its pervading retiform 

 tissue, which is not only connected to them, but forms an additional 

 or adventitious coat round their small branches, and even on some of 

 the capillaries (page 178). 



As to the lymphatics of the gland, it seems to be tolerably well made 

 out, that the afferent vessels, after branching out upon and in the tissue 

 of the capsule, send their branches through it to open into the lymph- 

 sinuses of the cortical alveoli, and that the efferent lymphatics begin by 

 fine branches leading from the l}Tnph-sinuses of the medullary part, 

 and forming at the hilus a dense plexus of tortuous and varicose-looking 

 vessels, from which branches proceed to join the larger efferent trunks. 

 The lymph-sinus, therefore, forms a channel for the passage of the lymph, 

 interposed between the afferent and efferent lymphatics, communi- 

 cating with both, and maintaining the contmuity of the lymph-stream. 

 The afferent and efferent vessels, where they open into the lymph-sinus, 

 lay aside all their coats, except the epithelioid lining, which is continued 



o 2 



