That cells that form tissues often have junctions that hold them together so that they don't fall apart and they exist as a solid piece of tissue.

组织细胞通常通过,细胞连接而联系在一起,所以它们不会分散开来,而保持坚固的组织形态

耶鲁公开课 - 生物医学工程探索课程节选

Because of that, because they're not directly wired together but because there is - are decisions and integrations occurring at each junction, the potential operation of the nervous system becomes diverse.

正因如此,正因为神经元并不是直接联系在一起的,但在每个连接处进行决策和信息整合,使神经系统的活动具有多样性

耶鲁公开课 - 生物医学工程探索课程节选