Download (01) Embryologie Humaine Embryologie Humaine Pdf 📥

Forms the nervous system, skin, and sensory organs.

During this period, occurs, establishing the primitive versions of major organ systems. This stage is also the most vulnerable to teratogens , environmental factors like drugs or infections that can cause congenital malformations. Maturation and Growth: The Fetal Stage Download (01) embryologie humaine embryologie humaine pdf

The (Weeks 3–8) is arguably the most dynamic period of development. It begins with gastrulation , a process where the embryo reorganizes into three distinct germ layers— ectoderm, mesoderm, and endoderm . These layers serve as the biological blueprint for all future structures: Forms the nervous system, skin, and sensory organs