[The dynamic postnatal morphogenesis of the hemato-C-cellular interrelations in the rat thyroid gland].

The system of hemato-C-cellular interactions in the thyroid gland of rats at the age of 2, 4, 12, 26, and 52 weeks is characterized by similar submicroscopical organization: the typology of hemato-C-cellular complex is preserved during ontogenesis and predominant coupling of the vascular pole of C-cell to the highly effective peripheral zone of the endotheliocytes with reference to the transport is provided. Ultrastructural changes in the zones of the perifollicular hemocapillaries facing the vascular fields of C-cells reflect the dynamics of functioning of the hemato-C-cellular system at different stages of postnatal morphogenesis.