940 



THE SUPRARENAL BODIES. 



zona fasciculata to the main part ; but as the transition from one of these 

 parts to another is not sudden nor indicated by any line of demarcation, they 



Fig. 661. 



Fig. 662. 



Fig. 661. FRONT VIEW OP THE RIGHT KIDNEY AND SUPRARENAL BODY OP A FULL 



GROWN FCETUS. 



This figure shows the lobulated form of the foetal kidney r ; v, the renal artery and 

 vein ; u, the ureter ; s, the suprarenal capsule, the letter is placed near the sulcus in 

 which the large veins (v') are seen dividing aud dipping into the interior of the organ. 



Fig. 662. SECTIONS OP THE SUPRARENAL BODY. 



A, vertical section of the suprarenal body of a foetus twice the natural size, showing 

 the lower notch by which it rests on the summit of the kidney, and the anterior notch by 

 which the veins penetrate, together with the distinction between the medullary and 

 cortical substance, f 



B, longitudinal section of the cortical substance, showing the capsules containing 

 nucleated cells and intervening blood-vessels. 2 -~ The figure represents a small fragment 

 of a section made perpendicularly to the surface in a suprarenal body of which the 

 bloodvessels were partially injected, a, one of the superficial masses of cells (in the zona 

 glomerulosa of J. Arnold) ; a', one of the longer masses slightly deeper (zona fasciculata) ; 

 6, bloodvessels running in the septa of connective tissue between the cell-masses in a 

 part of the specimen ; c, connective tissue and sheath substance on the surface ; c' , con- 

 nective tissue of the septa : this figure, though true to nature in the representation of the 

 several textures, is so far diagrammatic that the space occupied by the shorter masses of 

 cells towards the surface is proportionally too small. 



are probably only modifications of the same structure. The contents of the 

 stroma consist of nucleus-like bodies from j^^th to f^th of an iuch in 

 diamettr, mixed with minute yellowish granules, aud. oily particles with 

 granular matter adhering to them, together with large groups of closely set 

 nucleated cells containing granular matter and oily molecules. The cells 

 vary from ^- () th to ~ 5 -^th of an inch in size, and their opposing sides are 

 somewhat flattened, giving them the form of irregular polyhedra : the larger 

 cells are most loaded with oil-globules. In many instances, probably, the 

 appearance of free nuclei and oil-globules is to be explained by cell-walls 

 being ruptured or remaining unrecognised. 



