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| pathway of unconscious proprioceptive sensibility of trunk and limbs (又称反射性本体感觉传导路，由2级神经元组成。第1级神经元的胞体位于脊神经节内，其周围突分布于骨骼肌、腱、关节等处的本体觉感受器，中枢突经脊神经后根进入脊髓,止于第8颈髓节段至第2腰髓节段的胸核和腰骶膨大的中间带灰质 (第2级神经元的胞体所在)胸核发出的纤维在同侧组成脊髓小脑后束，向上经小脑下脚至旧小脑皮质。中间带灰质发出的纤维在同侧和对侧组成脊髓小脑前束，经小脑上脚至旧小脑皮质。小脑通过反射调节肌张力。两侧脊髓小脑束损伤，可引起肌张力减退和运动失调，但本体感觉并不丧失) | |||
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