初生仔猪腹腔脏器的动脉分枝类型

用乳胶加颜料血管注射的方法,对32例初生仔猪的腹腔脏器的动脉分枝进行观察,其主要结果如下: 腹腔动脉有五个分枝类型,即两枝型(脾动脉、肝动脉)有25例(78.13％);三枝型(脾动脉、胃左动脉、肝动脉)有3例(9.36％);四枝型A(脾动脉、憩室动脉、胃左动脉、肝动脉)有1例(3.13％);四枝型B(两主枝是脾动脉和肝动脉,两侧枝是胃左动脉和憩室动脉)有1例(3.13％);一枝型(只有脾动脉,而肝动脉则来自肠系膜前动脉)有2例(6.25％)。 空肠动脉的分枝,依次形成初级弓、二级弓和网状丛,再由网状丛发出大量的、放射状的小枝分布到肠管上。这些小枝呈两两成对地并列(与同级静脉伴行),到肠管附近,两枝彼此分开,每枝分布到肠管的一个侧面。

TYPES OF THE ARTERIAL RAMIFICATION OF THE ABDOMINAL DIGESTIVE ORGANS IN NEWBORN PIGLETS

The types of the arterial ramification of the abdominal digestive organs in 32 newborn piglets were observed by means of injecting the latex with the colours. There are five types of the ramification on the celiac artery : ( 1 ) it gives off two main branches ( the splenic and hepatic arteries ) in 25 instances ( 78.13% ) ; ( 2 ) it gives off three main branches ( the splenic, hepatic and left gastric arteries ) in 3 instances ( 9.36% ) ; ( 3 ) it gives off four main branches ( the splenic,hepatic, left gastric and diverticular arteries ) in 1 instance ( 3.13% ) ; ( 4 ) in addition to the splenic and hepatic arteries as two main branches, two collateral branches ( the left gastric and diverticular arteries ) arise from the parent trunk in 1 instance ( 3.13% ) ; ( 5 ) the celiac artery is continued only as the splenic artery, while the hepatic artery diverges from the cranial mesenteric artery in 2 instance ( 6.25% ). The branches of the adjacent jejunal arteries form in series the primary arcades, the secondary arcades and the plexuses looked like networks. The latter give off a lot of radial twigs to the jejunum. Each pair of these twigs goes side by side to the jejunum ( in company with homouymous venous twigs). Upon reaching the jejunum, the two paired twigs seperate from each other, and each extends to the lateral aspect of the intestinal wall under the serous membrane.