#interstitial_tissue  tissue between the cells of a structure or part in plant or animal
  supertype:  animal_tissue  plant_tissue
  subtype:  neuroglia  sustentacular tissue that surrounds and supports neurons in the central nervous system; glial and neural cells together compose the tissue of the central nervous system
     subtype:  astroglia__macroglia  tissue consisting of large stellate neuroglial cells
     subtype:  microglia  neuroglial tissue of mesodermal origin that can become phagocytic
     subtype:  oligodendroglia  tissue consisting of glial cells with sheet-like processes that form the myelin sheath of nerve fibers

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