[Correlation of the differentiation of the epithelium of provisory and definitive kidneys in vertebrates].
Opisthonephros-the primary kidney of the frog-has features similar in its development to both primary and secondary kidneys of the rabbit, and at the same time they greatly differ from the frog's pronephros in the course of its development. It is in the development of the frog's pronephros where the regularity of shortened and accelerated differentiation of tissue of provisory organs as compared with definitive ones formulated by P.P. Ivanov has distinct manifestation. It is in agreement with the fact that the pronephros of lower vertebrates is considerably more primitive in its anatomical and physiological features than the primary and secondary kidneys of higher vertebrates which are in general similar with each other though functioning in different developmental periods.
D000717:Anatomy, Comparative; D000818:Animals; D001001:Anura; D004848:Epithelium / Q000196:embryology; D007668:Kidney / Q000166:cytology / Q000196:embryology*; D007684:Kidney Tubules / Q000196:embryology; D011817:Rabbits
Sootnoshenie differentsirovki épiteliev provizornoĭ i definitivnoĭ pochek u pozvonochnykh