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NERVOUS TISSUE (Neurons (unipolar neuron (1.sensory neurons in PNS, 2…

- - - - 1.myelin sheath
      - 2.wrap around axons
      - 3.gaps between myelin sheath: NODES of RANVIER
    - - 1.cover cell body of ganglia(sensory neurons)
  - - - 1.the most amount of CNS neuroglia
      - 2.connect neuron and capillary
      - 3.form BBB
        
        造成腦部微血管叫身體其他區域更不易滲透
      - 4.control chemical environment
        
        K+ buffer, migration, nutrition, neurotransmitters
    - - 1.few branched
      - 2.myeline sheath of CNS
      - 3.球莖狀
    - - 1.little glue cells
      - 2.spider-like PHAGOCYTES
      - 3.移除受損神經組織、廢物
      - 4.resemble to macrophages in immune system
    - - line cavities of brain&spinal cord
      - 2.produce cerebrospinal fluid(CSF)
      - 3.ciliated simple cuboidal epithelium