XVIII.] THE LYMPHATIC SYSTEM. 195 



a. Externally the broad fibrous sheath, the cap- 

 sule sending in 



6. Large and conspicuous trabeculae; these 

 run throughout the spleen branching as they 

 go into roundish bundles which are connected 

 with other similar bundles and so form an 

 irregular trabecular network throughout the 

 spleen : the bars of the network cut in all 

 directions will be seen scattered about the 

 section. 



c. In many of the trabeeulaa largish central 

 spaces the veins, which may contain blood 

 corpuscles, will be seen, devoid of any proper 

 muscular and connective tissue coats ; in the 

 centre of the section large trabeculaB cut 

 transversely or obliquely will probably be 

 seen containing both arteries and veins; if 

 the section passes through the point of en- 

 trance of the vessels these will be seen run- 

 ning towards the centre surrounded by tissue 

 continuous with the capsule. 



d. The splenic pulp occupying the spaces of 

 the trabecular network ; it resembles some- 

 what the follicular substance of the lymphatic 

 glands but has a yellowish-mottled appear- 

 ance, in it will be seen roundish masses of 

 tissue, the Malpighian corpuscles more 

 deeply stained than the splenic pulp, the 

 small arteries are surrounded by a variable 

 amount of similar tissue. 



132 



