[Structure of terminal lymphangion of the thoracic duct].

Peculiarities of terminal lymphangion wall in humans and dogs were studied in its different parts using various morphological methods. Main results were obtained with the use of a total preparation method after A.V. Borisov. Heterogenous distribution of myocytes in different regions of lymphangion (muscular cuff, valve sinus wall) was noted. In the terminal lymphangion myocytes from three anatomically and topographically different muscles: cuff muscle, tensor muscle of the distant valve, tensor muscle of the proximal valve (thoracic duct orifice valve). Some features of terminal lymphangion construction similar to those seen in other lymphangions as well as certain specific characteristics and species peculiarities, are described.