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LYMPHATIC VESSELS - REMARKS CONCERNING OF MORPHOLOGY REGULARITY OR IRREGULARITY. ARE THEY IMPORTANT FOR FUNCTION OF LYMPHATICS?
Department of Anatomy, First faculty of Medicine Prague, Charles University Czech Rep.
We present short overview of some main irregular morphology features or specialities of lymphatics.
Material and methods: Samples of lymphatics were taken from normal human being and patients with lymphedema, from cadavers and animals-dogs. Samples processed by translucency methods with methyl salicylate, histology and electronmicroscopy methods and compared with clinical lymphangiography and lymph flow morphology changes and irregularities were found in these cases:
A/Macroscopy appeareance of lymphatics
B/Microscopy
1/Initial lymphatics:
a/ pattern of lymphatics in young people and conversaly in old age -atrophy
b/ closed and open junctions, types of interendohelial contacts in normal conditions and different illness c/ vesicular systém endothelial cells contra interendothelial junctions
OLDRICH ELISKA
d/ actinmyosin complex in endothelial cells
2/lymphatic collectors
irregular structures of the wall of lymphatic collectors myoendothelial junctions
lymphovenous anastomoses
different shape of lymphatic valves and lymphangions
Results: With structural irregularity of lymphatic wall, the lymphatics differ from arteries and veins which in contrast to lymphatics are more regular. In one tributary region two lymphatics of the same diameter that drain the region are not same from morphology point of view. These features can influence the physiology-lymph flow.
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THE EUROPEAN JOURNAL OF LYMPHOLOGY - Vol. XXVI - Nr. 72 - 2015