THE LYMPH NODES 



237 



ramifications of these medullary trabeculas are continuous with those 

 of the cortex. 



Fia. 243. TRANSECTION OF A CERVICAL LYMPH NODE OF A DOG. 



The denser portions of lymphoid tissue are light in the figure, a, medullary cord 

 of dense lymphoid tissue; b, looser lymphoid tissue of the cavernous medulla; c, 

 capsule; F, dense lymph nodule of the cortex; HF, fibrous tissue containing the large 

 vessels of the hilum; s, peripheral lymphatic sinus; V, blood-vessel. Magnified 

 several diameters. (After Ranvier.) 



The lymphoid tissue of the medulla is divisible into the denser branch- 

 ing lymph cords, in which the lymphocytes are closely packed, and the 



FIG. 244. TRANSECTION OF A MESENTERIC LYMPH NODE OF A MAX. 

 Hematein and eosin. Photo. X 38. 



intervening pulp spaces, in which lymphocytes are less numerous, and 

 the reticulum of which is continuous with that of the cortical nodules. 



