Baltadjiev G
Department of Anatomy, University of Medicine, Plovdiv, Bulgaria.
Folia Med (Plovdiv). 1994;36(2):47-53.
Electron microscopy was used to study osteon capillaries of the compact tissue of human growing long bones. The capillaries were found to be of the continuous type. On the lumenal surface of endothelial cells of the arterial capillaries there were a great number of micropinocytotic vesicles as well as a lot of branching cytoplasmic processes forming a characteristic spongioid layer. Vesicles and filopodia were considerably fewer on the basal surface of the cells. The endothelial cells of the venous capillaries had a small number of micropinocytotic vesicles and single cytoplasmic projections on their lumenal and basal surfaces. The capillary wall contained a great amount of pericytes. There were a lot of micropinocytotic vesicles in the cytoplasm.
运用电子显微镜研究人类生长中的长骨致密组织的骨单位毛细血管。发现这些毛细血管属于连续型。在动脉毛细血管内皮细胞的管腔表面,有大量微胞饮小泡以及许多分支状的细胞质突起,形成一层特征性的海绵样层。细胞基底面的小泡和丝状伪足则少得多。静脉毛细血管的内皮细胞在管腔和基底面有少量微胞饮小泡和单个细胞质突起。毛细血管壁含有大量周细胞。其细胞质中有许多微胞饮小泡。