Postnatal transformations of the intramural apparatus of the human umbilical vein

Abstract

During the development of the organism, sequential changes occur within its cellular, tissue, and organ structures, ultimately leading to their morphophysiological specialization. However, in some organs, these processes progress somewhat uniquely during postnatal life. This is evident in the umbilical vein, which loses its primary function immediately after birth but remains part of the body’s natural system of connections. Currently, this issue is insufficiently studied; most research focuses on the final outcomes of postnatal transformations, considering factors such as wall thickness, the presence of a lumen, and the degree of patency. While these aspects are undoubtedly significant for clinical medicine, they do not fully capture the complexity of the process