LYMPHATIC GLANDS. 



355 



connective tissue, which invests and supports the glandular 

 structure within ; while prolonged from its inner surface 

 are processes or trabeculce which, entering the gland from 

 all sides, and freely communicating, form a fibrous scaf- 

 folding or stroma in all parts of the interior. Thus are 

 formed in the outer or cortical part of the glands (fig. 96) 



in the intervals of the 



Fiq. 06 * 



trabeculse, certain inter- 

 communicating spaces 

 termed alveoli ; while 

 a finer meshwork is 

 formed in the more cen- 

 tral or medullary part. 

 In the alveoli and the 

 trabecular mesh work the 

 proper gland substance 

 is contained ; in the form of nodules in the cortical alveoli, 

 and of rounded cords in the medullary part (fig. 97). 

 The gland-substance of one part is continuous directly 

 or indirectly with that of all others. 



The essential structure of lymphatic-gland substance 

 resembles that which was described as existing, in a simple 

 form, in the interior of the solitary and agminated intes- 

 tinal follicles (p. 302). Pervading all parts of it, and 

 occupying the alveoli and trabecular spaces before referred 

 to, is a network of the variety of connective tissue termed 

 retiform tissue (fig. 98), the interspaces of which are 

 occupied by lymph-corpuscles. The corpuscles are ar- 

 ranged in such a way, that while in the centre of the 

 alveoli and of each mesh they are so crowded together 

 as to be, with the retiform tissue pervading them, a con- 



* Fig. 96 (after Kolliker). Section of a mesenteric gland from the 

 ox, slightly magnified, a, hilus ; & (in the central part of the figure), 

 medullary substance ; c, cortical substance with indistinct alveoli ; d, 

 capsule. 



A A 2 



