Розвиток та становлення топографії непарної та напівнепарної вен у зародковому періоді

Abstract

The experiment, which was carried out, testifies that unpaired and half-unpaired veins appear owing to the complicated transformations of the postcardinal vein's basin. These transformations are stipulated иу the featuгes of the organogenes in the region of the primary kindeys. The appearing of the secondary cardinal veins (subcardinal and supracardinal) and the existence of the connections between them and postcardinal vеіns аге the spring for the forming of unpaired and half-unpaired veins.