其外层可见横纹肌细胞，其间有大量的新生的直径不等的微血管和毛细血管，软骨细胞与肌细胞之间连接紧密。
Striated muscle cells connected with the neonate chondrocytes firmly. Neonate capillaries and micro blood vessels of various diameters were abundant in striated muscle stratum.
E21海马微血管密度达到正常水平，P 30海马毛细血管结构正常。
The microvessel density of E21 hippocampus reached a normal level and the blood capillary ultrastructure of P30 hippocampus was restored.
血液流过称为微血管的毛细血管网，丰富地供应给每一根绒毛。
Each villus is richly supplied with blood which passes through a network of tiny tubes called capillaries.
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