HYPOPHYSIS CEREBRI 461 



these cases the lumen often contains a colloid mass resembling 

 that found in the thyroid follicles. 



The organ is richly supplied with blood vessels, which form an 

 extensive capillary plexus among the cell columns and are thus 

 brought into intimate relation with the glandular epithelium. 

 The nerves of the anterior lobe, according to Berkley, are derived 

 from the sympathetic, and terminate in varicose end fibrils which 

 are in contact with the epithelial cells. The nerve supply is 

 relatively scanty. 



