Скорочувальні елементи екскреторних проток пальпебральної часточки сльозової залози людини

Abstract

In the article the questions devoted to mechanisms of secretions in the excretory ducts of the palpebral part of the human lacrimal gland. Modern literature data allow to assert that the process of the secret formation currently well understood, what can not be said about the mechanisms that contribute to the outflow of secretions. Unfortunately, there are unknown mechanisms of ducts excretion and influence on the secret formation features of their spatial-structural organization. In turn, myoepithelial cells actively or passively, can affect the clearance limit of the departments of the ducts at them increase in hydraulic pressure. It is proved that myoepithelial cells are found in the human lacrimal gland all over the excretory ducts, as evidenced by immunohistochemical method of detecting them, which may be associated with greater viscosity protein secretion (lacrimal fluid) and the corresponding demand for gland contractile elements. In turn, the presence in the walls of the excretory ducts of the human lacrimal gland of muscular epithelium, alternating contractions and expansions of the lumen of the ducts, the tortuosity of stroke corresponding to normal structure of the gland and can affect the hydrodynamic characteristics of laminar current of fluid moving along the excretory ducts. It is recommended the need for more detailed studies of morphological, anatomical and topographical features of the lacrimal glands with the purpose of carrying out a comparative morphological study of the lacrimal and minor salivary glands. The prospect of further studies is to conduct a comparative morphological study of the lacrimal and minor salivary glands with the goal of developing recommendations for morphological the rationale for autologous transplantation of the mucous membrane, containing a labial or palatine salivary glands, in the conjunctiva century, to eliminate the shortage of tear fluid in the development of the syndrome of «dry eye».