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Localization and macrostructure of subuterine lymphatic vessel networks in the bovine uterine broad ligament.

Localization and morphological features of lymphatic vessels leaving tissues of uterine horns and running through the broad ligament area were studied in mature cows after filling the lumen of the each lymphangion with varicoloured masses, mainly Microfil. The study has revealed that each branch of the lymphatic vessels emerged from both sides of the uterus and then formed double-layered networks, dorsal and ventral in the area of the mesometrium. The lymphatic branches under the uterus are very numerous and consist of enlarged precollector lymphangions. At the level of the ovary, the branches of vessels in both layers interweave each other forming the common pathway suggesting that lymph leaving the bovine uterus can be mixed in branches which are formed by elongated lymphangions running to lymphatic nodes.