blastocyst implantation. a schematic representation of a blastocyst approaching the receptive endometrium. appearance of

apposition adhesion schematic representation blastocyst receptive endometrium trophoectoderm integrin pinopode endometrial capillar microvilli syncytiotrophoblast trophectoderm growth factor cytokine uterodom gland luminal epithelium capillaries embryoblast embryology inner development implantation reproduction micro stage reproductive egg ovum zygote contraceptive fertility ovary biology microscopic embryonic medical uterus embryo human fertilization female pregnancy cell anatomy