The Neural Plate

The study of the neural plate and the notochordal process is essential for understanding embryonic development. The notochordal process, located at the level of the sacrum, plays a fundamental role in inducing the impulse necessary for the formation of the neural plate. Within three days, this process leads to the formation of the neural groove, which is accompanied by pharyngeal and cloacal membranes. This curvature of the neural plate, facilitated by the notochord, is synchronized with the appearance of fine aortic capillaries, thus allowing the establishment of a vascular pathway in the mesoderm.

The closure of the neural tube, which occurs around the 28th day, is a key event in embryonic development. It is marked by the integration of the coelom and the simultaneous development of the abdominal and cerebral cavities. This process is influenced by molecular factors such as Sonic Hedge-Hog (SHH) and Bone Morphogenetic Proteins (BMP), which modulate the dorsalization of the system. Neural Crest Cells also play a crucial role in the formation of the peripheral nervous system and facial structures. In addition, amniotic fluid, rich in building proteins, is essential for the development and cleansing of the body, highlighting the importance of the environment in the embryonic process.