The structure of the outer structural layer of the rodent placenta[MP]. [ http://www.ncbi.nlm.nih.gov/pubmed/19829370 MP:0004255 ]
Synonyms: spongiotrophoblast layer of placenta
Term information
pheno_slim
In the absence of direct lineage analysis, it has been assumed, from histological studies and from the continuity of marker gene expression, that the spongiotrophoblast largely derives from the cells of the ectoplacental cone
Forms a compact layer of non-syncytial cells between the labyrinth and the outer giant cells
restriction to Rodentia may be too strong - we apply it for now as we are inheriting the MP definition
Term relations
- extraembryonic tissue
- reproductive structure
- cell layer
- cellular anatomical structure
- mesoderm-derived structure
- has part some spongiotrophoblast cell
- part of some placenta
- develops from some ectoplacental cone
- composed primarily of some spongiotrophoblast cell
- only in taxon some Rodentia