title: [Changes in the parietal layer of the yolk sac of the rat in the 2nd half of pregnancy (a morphological and morphometric analysis)].
abstract: Parietal layer of the yolk sac was studied in rat on d 11-21 pregnancy, taking into consideration topographic peculiarities and regional differentiation. Epithelial cells of placental and obplacental zones differentiate asynchronously, but perform similar specific functions. Parietal layer of the yolk sac regulates selective transport of macromolecules to the embryo (or fetus) in placental region and entodermal sinus.
authors.affiliation: Department of Histology, Embryology and Cytology, Medical Institute of Novosibirsk.
authors.forename: N N
authors.initials: NN
authors.lastname: Dubinina
authors.forename: Iu I
authors.initials: IuI
authors.lastname: Sklianov
authors.forename: V D
authors.initials: VD
authors.lastname: Novikov
authors.forename: E V
authors.initials: EV
authors.lastname: Dubinin
authors.forename: N A
authors.initials: NA
authors.lastname: Bychkova
mesh_terms: D000818:Animals; D002452:Cell Count; D004847:Epithelial Cells / Q000648:ultrastructure; D005260:Female; D016591:Histocytological Preparation Techniques; D008854:Microscopy, Electron; D011247:Pregnancy; D051381:Rats; D017208:Rats, Wistar; D013997:Time Factors; D015017:Yolk Sac / Q000166:cytology*
vernacular_title: Izmeneniia parietal'nogo listka zheltochnogo meshka krysy vo vtoroĭ polovine beremennosti (morfologicheskiĭ i morfometricheskiĭ analiz).