Uberon definition : extraembryonic cells of trophoblastic shell surrounding embryo, outside the cytotrophoblast
layer, involved with implantation of the blastocyst by eroding extracellular matrix
surrounding maternal endometrial cells at site of implantation, also contribute to
villi. (dark staining, multinucleated).;
extraembryonic cells of trophoblastic shell surrounding embryo, outside the cytotrophoblast
layer, involved with implantation of the blastocyst by eroding extracellular matrix
surrounding maternal endometrial cells at site of implantation, also contribute to
villi. (dark staining, multinucleated).