Nervous tissue is composed of two main cell types: neurons and glial cells. Neurons transmit nerve messages. Glial cells are in direct contact with neurons and often surround them.

 
  • 神经系统有两部分组成:神经元细胞,神经质细胞。神经元细胞用于传输信息。神经质细胞用于保持神经元之间保持联系使用的。
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