[Mechanisms of adenohypophyseal development in birds]

It was established by micrurgical methods that the second step of adenohypophysis morphogenesis related to the submergence of the Rathke pouch epithelium in the proliferating mesenchyme takes place due to high adhesivity of cells of the anterior wall of adenohypophysis anlage towards diencephalon base independently submerging in the mesenchyme. Cell adhesion ensures the direct contact of both the formations on the basis of which characteristic relationships between hypothalamus and adenohypophysis arise during development.