[Construction and cellular composition of the deep cervical lymph nodes of hamadryad baboons]

The deep cervical lymph nodes in the Papio hamadryas at the age of 1.5--2.5 years have a peculiar even distribution of the cortical and medullary substances, and in histological sections a comparatively small area is occupied by follicles (predominantly by those without light centers), myelin cords and some portal sinuses. Every structure studied has its own set of cellular elements, but lymphocytes are the predominant cellular form in every structural component. Plasmic cell content in the cortical and medullary substances is nearly identical. Construction and cytoarchitectonics of the deep cervical lymph nodes could be connected with peculiar localization and function.