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The aim of the study was to determine if any sphincter-like areas are present in the gastrointestinal tract arteries of domestic cattle, and to establish their morphology and topography. It was achieved by analysing the celiac trunks of seven cows. By the means of a light microscopy evaluation, thickenings in the tunica media of the celiac artery and its primary branches were detected. Having determined...
A microscopic study was carried out on 10 specimens of visceral and superior mesenteric arteries and their branches, taken from domestic pigs. Some thickenings in the middle tunic of the visceral artery and its main branches were observed. The thickenings appeared at intervals of about 2 cm and were even several centimetres long. The structure of the thickenings was similar. Besides numerous circularly...
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