116 THE DUCTLESS GLANDS 



1. Bodies composed entirely of cortical substance 

 "accessory cortical bodies." 1 



2. Bodies made up exclusively of medullary substance 

 " chromaphil bodies." 



3. True accessory adrenals composed of both cortex and 

 medulla. 



The accessory cortical bodies represent by far the larger 

 number of structures which have passed under the name of 

 " accessory adrenals." They are said to show the three zones 

 characteristic of the cortex of the adrenal of mammals, but no 

 chromaphil cells are present there is no " medulla." The 

 smallest of these bodies are microscopic ; others may reach a 

 diameter of a centimetre or more. They are found in the 

 neighbourhood of the chief adrenal, sometimes embedded in 

 other organs, in the retroperitoneal space, or in the genital 

 region, as, for example, in the ligamentum latum, or in the 

 space between testis and epididymis, where they are known as 

 " Marchand's adrenals." 



The Chromaphil Bodies. These are found, or may be found, 

 in any part of the body into which the sympathetic nervous 

 system extends, and more particularly as groups of cells in 

 connection with the abdominal sympathetic and its extensions. 

 In connection with the abdominal sympathetic they were first 

 noted and described by Ley dig and called ' ' Kernnester ' ' by 

 Mayer. The observations of both these authors applied to the 

 Urodela. 



But the recognition of the chromaphil cells and corpuscles 

 in mammals and the characteristic reaction with chromium, 

 by which they are now designated and homologized with the 

 medulla of the adrenals, are due to Stilling. This author found 

 in the abdominal sympathetic small bodies composed of cells 

 having the same chromaphil reaction as those forming the 

 medulla of the adrenal. He states that some are nearly a 

 centimetre in length, while others are only just visible to the 

 unaided eye. They are round, oval, or elongated in form, and 

 their thickness is never more than a few millimetres. They 

 have a tunica propria, small vessels and capillaries. Between 

 the capillaries are cells which resemble in all respects those of 



1 The term " accessory inter-renal bodies " has been sometimes applied to 

 th. in. hut it seems best to avoid the t-nn inter-renal " except as applied to 

 the Elasmobrancha. 



