Derivatives intermediate cerebral vesicles, gill arches and stomodeum morphogenesis in human embryo
Aim. Identify the structural transformation of developing organs in human embryo head part at the post somite stages. Material and methods. 97 human embryos (15-23 Carnegie stages), light and electron microscopy. Results. Stomodeal epithelium are migrate into the lining of Rathke’s pouch (RP). Then they are transformed and become a source of stratified squamous epithelium of the organs in the anterior part of the digestive tract. Conversion gill apparatus underlie the organogenesis of the endocrine glands, the mucous membrane of the mouth options. Intermediate brain bubble determines the development of RP and neurohypophysis. Conclusions. post somite stages embryonic period characterized by rapid processes of organogenesis in the human embryo head part.