Mykhailovskyi A. The Development and Forming of the Topography of the Structure of the Jugular Venous Angles at an Early Stage of Human Ontogenesis

The object of investigation is the anatomy of vascular system. The aime of investigation is the study of the topographo-anatomical peculiarities of the structure of the jugular venous angles at different stages of the prenatal period of the development and in human neonates. For this purpose the macromicroscopy, usual and thin preparations under binocular microscope MBS-10, the injection of vessels with consequent corrosion and rentgenography, the graphical reconstructions, the morphometry, statistics methods were used. The thesis presents a theoretical substantiation and a new solution of a topical problem pertaining to the chronological succession of the development, forming and making of the venous angles of the neck and lymphovenous junctions at an early stage of human ontogenesis that are of scientific-practical importance. The dynamics of the embryotopography of the venous angles during an early stage of human ontogenesis has been traced and correlation changes of the jugular and subclavicular veins that form them with the adjacent anatomical structures in prefetuses, fetuses and neonates have been established. The bibliographical data, concerning the time, site and source of anlage of the venous angles, the cervical portions of the right lymphatic and thoracic ducts have been supplemented and enlarged. The terms of a delayed and accelerated growth of the components of the neck angles have been established. Results of investigation are already used in studing process of such departments as topographic anatomy and operative surgery, normal anatomy and child surgery of Higher Medical Institutions of the Ukraine, and also at the department of child surgery of Chernovtzy' and Donetzk' hospitals. The field of usage: embriology, neonatology, child surgery, reanimatology and anaestesiology.