实验啮齿动物血管中平滑肌细胞的三维组织结构。

Three-dimensional organization of smooth muscle cells in blood vessels of laboratory rodents.

作者信息

Komuro T, Desaki J, Uehara Y

出版信息

Cell Tissue Res. 1982;227(2):429-37. doi: 10.1007/BF00210897.

Abstract

Three-dimensional aspects of smooth muscle cells of the microvasculature were studied ultrastructurally in laboratory rodents by means of serial thin sections and reconstruction of muscle cell models. It was demonstrated that a muscle cell of an arteriole (luminal diameter (LD) 17 microns) in hamster striated muscle was spindle-shaped, 70 microns long, and wound twice round the vessel axis. The volume of the cell was calculated as 750 microns3 and its surface area as 1330 microns2. A muscle cell in an arteriole (LD 6 microns) in the rat retina was irregular in shape, about 22 microns long, and had branched processes. The cell volume was calculated as 139 microns3 and its surface area as 298 microns2.

摘要

通过连续超薄切片和构建肌肉细胞模型的方法，在实验室啮齿动物中对微脉管系统平滑肌细胞的三维结构进行了超微结构研究。结果表明，仓鼠横纹肌中一条小动脉（管腔直径（LD）17微米）的肌肉细胞呈纺锤形，长70微米，围绕血管轴缠绕两圈。该细胞的体积计算为750立方微米，表面积为1330平方微米。大鼠视网膜中一条小动脉（LD 6微米）的肌肉细胞形状不规则，长约22微米，并有分支突起。该细胞的体积计算为139立方微米，表面积为298平方微米。