MORPHOFUNCTIONAL CHARACTERISTICS OF THE THYROID AND ADRENAL GLAND IN A NEWBORN WHITE-BREASTED HEDGEON

Abstract

The article studies the patterns of morphological changes in the thyroid gland and adrenal glands in a newborn white-breasted hedgehog, which should be considered as a compensatory-adaptive reaction of the body aimed at maintaining metabolic homeostasis by the period of postnatal life. In 75% of cases, a definitive cortical substance was found, which is not accompanied by zonal differentiation. The chromaffin cells of the medulla are few in number, poorly differentiated, and are located in the center of the gland in the form of a thin strip. The thyroid gland does not have a typical lobular structure and classic follicles, it is represented by asexual accumulations of thyrocytes, which indicates its incomplete definitive structure.