Structural organization of the thymus gland in the second trimester of the fetal growth


  • T. V. Khmara
  • O. M. Halychanska
  • I. A. Holubovskyi
Keywords: thymus, morphogenesis, fetus, human

Abstract

We have studied features of the thymus structural organization in fetuses aged 4-6 months. It was established that in the early fetal period of ontogenesis the development of medullary substance is significantly ahead of cortical zone formation - the area of the medullary substance in the thymus is much greater, and you can observe numerous epithelioreticular stromal cells in it. At the end of the 5th month of fetal growth, an intensive development of connective tissue stroma, which germinating between the thymus particles, occurs; an intensive formation of the cortical substance in the thymus particles can be observed; vascularization, which creates conditions for the formation of the blood-thymic barrier, further differentiation of stromal cells and practically complete development of lymphocyte programed differentiation, improves.

Published
2017-10-27
How to Cite
Khmara, T. V., Halychanska, O. M., & Holubovskyi, I. A. (2017). Structural organization of the thymus gland in the second trimester of the fetal growth. Reports of Morphology, 21(1), 9-12. Retrieved from https://morphology-journal.com/index.php/journal/article/view/87
Section
ORIGINAL INVESTIGATIONS