Anatomical Studies on Patterns of Branches of Hepatic Veins in Korean Native Cattle

한우(韓牛) 간정맥(肝靜脈)의 분지(分枝)에 관한 해부학적(解剖學的) 연구(硏究)

The distribution of hepatic veins within the liver in 28 Korean native cattles were observed. Vinylite solution was injected into hepatic veins of seventeen specimens for cast preparation. The angiography was prepared in eleven specimens by injecting 30% barium sulfate solution into hepatic veins, and then radiographed on a X-ray apparatus (Shimadzu 800 MA 120 Kvp). 1. About two thirds or three quarters of the circumference of the Vena cava caudalis was embedded in the liver. The embedded portion was about 14~19cm in length. 2. The principal branches of the hepatic veins were Vena hepatica sinistra, Vena hepatica media, Vena hepatica dextra and Vena hepatica dorsolateralis; the three main hepatic veins were Vena hepatica sinistra, Vena hepatica media and Vena hepatica dextra. 3. The Vena hepatica sinistra joins the Vena cava caudal is near the esophageal impression of the liver. It gave off three or five branches to the left lobe. 4. The Vena hepatica media joined at the Vena cava caudalis close to the Vena hepatica sinistra. In all cases, Vena hepatica media opened near the diaphragmatic part of the liver than the Vena hepatica sinistra. It ran obliquely through the medial part of right lobe and quadrate lobe, giving off branches on each side. 5. The Vena hepatica dextra consisted of one(25 cases, 89.29%) or two separate veins(3 cases, 10.71%), joining to the Vena cava caudalis between the right and caudate lobes. 6. The flap of membranous tissue covered the dorsal half of the entrance of the Vena hepatica sinistra, media et dextra into the Vena cava caudalis. 7. The vestige of the ductus venosus persisted in the 12~18 months old cattles. 8. The anastomosis was observed in the intralobar and interlobar areas.