[Features of the morphofunctional organization of the embryonal nerve tissue of a transplant into the brain of the adult rat].

Foetal CNS tissue was implanted into different sites of mature rat brain. Analysis of morpho--functional organization and unit activity of the grafts was made 2-5 months after the implantation. Correlations among morphological and functional characteristics of the grafts and sites of the implantation are discussed. Morphofunctional peculiarities of the grafts seem to be due to heterogeneous influences of the host brain.