THE STRUCTURE AND MEASUREMENT OF THYMUS AT THE PERIODS OF NEWBORNS AND OLD AGES

Abstract

The thymus gland the central organs of immune system responsible for formation and maintenance biological protection o f an organism апatomic structure тимуса is studied 17 corpses at newborns and old age.people o f different age. Research techniques: 1) Anatomic methods (dis­ sections , measurement). 2) Histologic methods (coloring gemotoksilin-eoziny, on Van-Gizon. A s a result o f scientific research - thymus at newborns consists o fsegments. Under a capsule pass longitudinal connective fibers, mainly collagen type. Different "age” o f little bodies HassalVs is apprecia­ble. On a medulla layer the set o fsmall blood capillaries and lymphatic cracks, and also meet lymphocytes. Together degradation thymus consider­ ably decreases and almost T development - lymphocytes completely stops. In the old ages thymus degradations , reduction and stops the production of T- lymphocytes. In old ages thymus tissues is completely replaced by fa t tissues. The organ has lobes and different sizes. Between lobes present connective tissue and elastic fibers. Number HassalVs corpuscles normally. Lymphoblast’s sometimes forming large clumps. In old ages between the slices partitions erased. Reduction in the number o f lymphocytes and absent o felastic fibers.