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Modifications des membranes foetales de la ratte apres amniocentese (observations preliminaires).
Baeckeland, E.; Heinen, Ernst
1979In Bulletin de l'Association des Anatomistes, 63 (180), p. 59-67
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Keywords :
Amniocentesis; Amnion/ultrastructure; Animals; Endoderm/ultrastructure; Female; Microscopy, Electron, Scanning; Microvilli/ultrastructure; Pregnancy; Rats; Yolk Sac/ultrastructure
Abstract :
[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.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Baeckeland, E.
Heinen, Ernst ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Histologie humaine
Language :
French
Title :
Modifications des membranes foetales de la ratte apres amniocentese (observations preliminaires).
Alternative titles :
[en] Changes in the fetal membranes of the rat after amniocentesis - preliminary observations
Publication date :
1979
Journal title :
Bulletin de l'Association des Anatomistes
ISSN :
0376-6160
Publisher :
Association des Anatomistes, Nancy, France
Volume :
63
Issue :
180
Pages :
59-67
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 September 2009

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