Ontology highlight
ABSTRACT:
SUBMITTER: Carter AM
PROVIDER: S-EPMC4305171 | biostudies-literature | 2015 Mar
REPOSITORIES: biostudies-literature
Carter Anthony M AM Enders Allen C AC Pijnenborg Robert R
Philosophical transactions of the Royal Society of London. Series B, Biological sciences 20150301 1663
We here review the evolution of invasive placentation in primates towards the deep penetration of the endometrium and its arteries in hominoids. The strepsirrhine primates (lemurs and lorises) have non-invasive, epitheliochorial placentation, although this is thought to be derived from a more invasive type. In haplorhine primates, there is differentiation of trophoblast at the blastocyst stage into syncytial and cellular trophoblast. Implantation involves syncytiotrophoblast that first removes t ...[more]