550 



THE DUCTLESS GLANDS ENDOCRIN GLANDS 



The stroma of the zona fasciculata is continued inward from the 

 glomerulosa, but is so drawn out as to form elongated areolas, inclosing 



FROM A SECTION THROUGH THE HUMAN ADRENAL. 



a, central vein; b, capsule; c, zona glomerulosa; d, zona fasciculata; e, zona reticu- 

 laris; /, medulla; g, peri-adrenal adipose and areolar tissue. Hematein and eosin. 

 Photo. X 45. 



cell columns of considerable length, which are disposed in a radial man- 

 ner. This is the broadest of the three cortical zones and is interposed 

 between the glomerulosa and reticularis. 



