水溶性药物的另一个屏障是胶质结缔组织细胞(星形细胞),该细胞所形成的星形细胞鞘与毛细血管内皮基膜紧密邻接。
Another barrier to water-soluble drugs is the glial connective tissue cells (astrocytes), which form an astrocytic sheath close to the basement membrane of the capillary endothelium.
Surrounding the axon is a myelin sheath, which is actually just insulation.
髓鞘将轴突包裹起来,实际上形成了一个绝缘层
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