Early placentation in the African green monkey (Cercopithecus aethiops)
Abstract
Placentation in the green monkey (Cercopithecus aethiops) from gestational ages of 18–30 days was studied by light and electron microscopy. The placentae show many features in common with that of the rhesus monkey and other related macaques. Implantation is superficial and bidiscoid, and the placenta is classified as villous and hemomonochorial. Epithelial plaque formation and a moderate stromal reaction occur. Plaque cells are large, with massive deposits of glycogen and marginal pleomorphic dense bodies. Observations further support the concept that chorionic blood vessels, angioblastic and mesenchymal cells are not derived by delamination from cytotrophoblast. Capillary formation is by attachment of one or more mesenchymal cells and/or their processes. Embryonic blood was not observed in the vill·i until after day 22.
URI
http://www.karger.com/Article/Abstract/146280http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/54160
Citation
Owiti G.E.O., Cukierski M., Tarara R.P., Enders A.C. and Hendrickx A.G (1986). Early placentation in the African green monkey (Cercopithecus aethiops). Cells Tissues Organs, Vol. 127, No. 3Publisher
Department of Veterinary Anatomy, University of Nairobi Institute of Primate Research, Nairobi California Primate Research Center Department of Human Anatomy, University of California