anatomy of a blastocyst. a distinctive stage of a mammalian embryo.

analysis anatomy baby biology blastocyst cell cleavage cycle development diagram distinctive division early egg embryo embryology embryonic female fertile fertility fertilization follicle formed gamete genetic gynecology health human illustration implantation mammalian mammals medical medicine microscope microscopic mitosis molecular morula nucleus oocyte organism ovarian ovary ovum pregnancy reproduction reproductive science sperm stage stem structure system vector vitro zygote