[Kinetics of cellular populations at different stages of the histogenesis of tissues of the chorio-allantois of the chick embryo].
Changes occurring in indices of cell fractions being at the phase of mitosis (Nm) and at the phase of DNA synthesis (NS) have been studied in the chorio-allantoic tissues and in epithelii of the duodenum and cloaca. Their dynamics differ essentially. In the chorio-allantois, decrease in the Nm up to the 14th day is evidently connected with the transfer of the cells into R2-state, and then decrease of the proliferative pool takes place. This is caused by outcome of the cells from the reproductive cycle into differentiation.
D000482:Allantois / Q000166:cytology*; D000818:Animals; D002454:Cell Differentiation; D002642:Chick Embryo; D002823:Chorion / Q000166:cytology*; D002988:Cloaca / Q000196:embryology; D004247:DNA / Q000096:biosynthesis; D004386:Duodenum / Q000196:embryology; D005321:Extraembryonic Membranes / Q000166:cytology*; D007700:Kinetics; D008938:Mitosis
D004247:DNA
Kinetika kletochnykh populiatsiĭ na raznykh etapakh gistogeneza tkaneĭ khorio-allantoisa kurinogo zarodysha.