From the Book - 10th ed. /
Embryology : old and new frontiers and an introduction to molecular regulation and signaling
Gametogenesis : conversion of germ cells into male and female gametes
First week of development : ovulation to implantation
Second week of development : bilaminar germ disc
Third week of development : trilaminar germ disc
Third to eighth weeks : the embryonic period
Third month to birth : the fetus and placenta
Birth defects and prenatal diagnosis