Clayswork

Apuntes

• Subtopic: Gestation Process in 6 Steps 1. Zygote: Fertilized egg (ovum). It is the first cell of human development. 2. Cleavage: The zygote develops through mitosis. It remains within the zona pellucida, a protective layer. 3. Blastocyst: The embryo divides into two parts: the trophoblast (which will form the placenta) and the embryoblast (which will develop into the embryo). The blastocyst implants in the endometrial lining. 4. Embryo: The embryo undergoes organogenesis, which is the formation of organs and structures. The heart starts beating around week 4. 5. Fetus: Organs mature, limbs grow, and the nervous system develops further. Growth continues until birth, typically around 38-40 weeks.