人胰岛微血管构筑的研究

为研究急性坏死性胰腺炎的发病机理，采用墨汁灌注光镜观察法、微血管铸型扫描电镜观察法，研究了成人胰腺胰岛的微血管构筑。结果表明：成人胰腺内绝大多数胰岛由小叶内动脉直接分支供应；胰岛内微循环流向可分为三种类型，即中央型、周围型和混合型；胰岛输出血管——胰岛－腺泡门脉血管可分为聚合型和连续型两种类型；少数小胰岛无小叶内动脉分支直接供应，而由附近较大胰岛的输出血管供给，这种连接大、小胰岛之间的血管称为胰岛－胰岛门脉血管。

Microvasculature of Islets in Human Pancreas

The microvasculature of islets was studied by light microscopy with ink injection and scanning electron microscopy with vascular casts respectively in 11 human pancreas. The results revealed that most of the islets were supplied by the branches of the intralobular artery directely. The islets appeared in 3 types (central type, peripheral type and mixed type )characterized by the site where the afferent vessels entered the islets. Two (convergent and continuous) patterns of portal vessels were found according to their calibre and length. Some of the small islets were supplied by the efferent vessels of the adjacent large islets, and the vessels connecting the large and small islets were called insulo insular portal vessels.