绵羊肺泡毛细血管的扫描电镜观察

运用血管铸型和扫描电镜技术对绵羊肺实质内微血管的构筑特征进行了观察,旨在揭示绵羊肺泡毛细血管的分布特征,为哺乳动物肺微血管的研究积累资料,并为牦牛肺微血管的进一步研究奠定基础。观察结果显示,低倍镜下,在截面上可见肺实质内的微血管网均呈大小不等的蜂窝状结构,肺泡囊和肺泡的轮廓清晰可见;高倍镜下肺泡毛细血管网呈网络状,视野内大部分肺泡毛细血管网伸展良好。经与文献中有关动物肺泡毛细血管的研究结果相比较,本试验中绵羊肺泡毛细血管的构筑特征与新生牦牛、双峰驼相近,而与人、犬、猴、兔、鼠等动物差别较大。

Observation on the microvasculature of pulmonary parenchyma in sheep under the scanning electron microscope

The construction characteristics of pulmonary microvasculature in sheep were studied using the technology of vascular corrosion cast and scanning electron microscopy,in order to reveal the distribution characteristics of pulmonary microvessels,and accumulate materials for the research of the pulmonary microvessels on mammals,and lay the foundation of the further study on pulmonary microvasculature in yak.The results showed that in the parenchyma the pulmonary alveolar capillary networks were honey-comb like on the cut surface at a low magnification,and the outlines of alveolar sac and alveolar were clearly observed.The pulmonary alveolar capillary networks were network at a high magnification.The most alveolar capillary extended well in the fields of view.Compared with the results of pulmonary microvasculature on related animals,the characteristics of pulmonary microvasculature of sheep is similar to that of newborn yak and bactrian camel,but there are the significant differences between sheep and human,canine,monkey,rabbit and rat.