Mesenchyme - - embryonic c . t . with multipotential cells . the stellate cells are beginning to form fibers . sometimes cells are more spindle shaped . ground substance material is watery and invisible 间充质- - -胚胎时期结缔组织,含有多种分化潜能的细胞这种星形细胞可合成纤维。有时细胞成梭形。基质成分呈水样不可见。