Reference : Modifications des membranes foetales de la ratte apres amniocentese (observations prelim...
Scientific journals : Article
Life sciences : Anatomy (cytology, histology, embryology...) & physiology
http://hdl.handle.net/2268/23213
Modifications des membranes foetales de la ratte apres amniocentese (observations preliminaires).
French
[en] Changes in the fetal membranes of the rat after amniocentesis - preliminary observations
Baeckeland, E. [> > > >]
Heinen, Ernst mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Histologie humaine >]
1979
Bulletin de l'Association des Anatomistes
Association des Anatomistes
63
180
59-67
Yes (verified by ORBi)
0376-6160
Nancy
France
[en] Amniocentesis ; Amnion/ultrastructure ; Animals ; Endoderm/ultrastructure ; Female ; Microscopy, Electron, Scanning ; Microvilli/ultrastructure ; Pregnancy ; Rats ; Yolk Sac/ultrastructure
[en] With the aid of scanning electron microscopy the normal pattern of both faces of amnion and visceral yolk sac were described. The inner face of the amnion turned towards the amniotic cavity is overlaid by large pavimentous cells bearing numerous microvilli. The opposite face, which delimits the exocoelome, consists of flattened fibroblasts separated by a fundamental connective substance. The two faces of the visceral yolk sac also show very different patterns. The exocoelomic face is covered by pavimentous cells ; these are smaller and bear less microvilli than amniotic cells. The yolk sac endoderm appears built up with prismatic or cubic cells, whose apical part is bulging and possesses a dense covering of microvilli. Amniocentesis effects are then reported. This intervention seems to provoke fetal membrane modifications only after 15 hours. These modifications essentially concern the visceral yolk sac whose exocoelomic cells are covered by more numerous microvilli which may show an intensification of a secretory process.
http://hdl.handle.net/2268/23213

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