Spatial Organization of Output Ducts of the Palpebral Part of the Human Tear Gland

Abstract

Histological analysis of the wall of the excretory ducts was performed in order to identify common and distinctive features of the structural and spatial organization of the excretory ducts of the human lacrimal gland. In the system of excretory ducts of the human lacrimal gland revealed changes in diameter, which are visualized in sections in the form of local narrowings and pear-shaped extensions (the phenomenon of siphonization). In addition to the siphon-like structure of some excretory ducts, the phenomenon of its spiraling is noted. At the same time the tendency to existence of the greatest throughput for secretion in interparticle and general output channels is noted.The obtained morphological data will help to elucidate the mechanism of secretion outflow from the bifurcated system of the excretory ducts of the human lacrimal gland.