Tagged: embryo

Prenatal Development

Prenatal Development

PRE-EMBRYONIC PERIOD Cell Division Stage The first two weeks after conception is called the preembryonic period. By the fourth day after conception takes place, the fertilized ovum is now called...

Implantation Process

Implantation Process

Definition Implantation is the penetration of the growing structure to the uterine endothelium.  It occurs approximately 8 to 10 days after fertilization. Sequential Events in Implantation Immediately after fertilization, the...