STRUCTURE OF THE SPLEEN. 



C87 



size even at their origin, commence on the surface of each vesicle throughout tho 

 whole of its circumference, forming a dense mesh of veins, in which each of these 



Fig. 349. One of the Splenic Corpuscles, showing its Relations 

 with the Bloodvessels. 



bodies is inclosed. It is probable, that from the blood contained in the capillary 

 network, the material is separated which is occasionally stored up in their cavity ; 

 the veins being so placed as to carry off, under certain conditions, those contents 



Fig. 350. Transverse Section of the Human Spleen, showing the Distribution 

 of the Splenic Artery and its Branches. 



that are again to be discharged into the circulation. Each capsule contains a soft, 

 white, semi-fluid substance, consisting of granular matter, nuclei similar to those 

 found in the pulp, and a few nucleated cells, the composition of which is apparently 



