神经系统教学课件-汕头大学01感觉传导通路.pptVIP

神 经 传 导 路 The nervous pathway   * * 概 念 concept: 神经传导通路 Nervous pathway 指大脑皮质与感受器或者与效应器之间联系的径路 -- Communication between the CNS, the PNS and peripheral organs and systems involves pathways that relay sensory motor information between the peripheral and higher centers of the brain. 1 感受器至大脑皮质感觉中枢的传导通路 -- 感觉（上行）传导通路 The sensory conductive pathway 2 大脑皮质与效应器之间联系的路径 -- 运动(下行）传导通路 The motor conductive pathway 2 痛温觉、粗触觉和压觉（浅）传导通路 The conductive pathway of sensation of pain and warm, thick touch sensation and pressure sense 感觉（上行）传导通路 Sensory（ascending）conductive pathway 意识性 Conscious 非意识性Nonconscious 躯干、四肢 Trunk 、four limbs 头面部 Head and facial part 1 本体（深）感觉传导通路 Conductive pathway of proprioceptive sense 3 内脏感觉传导通路 Conductive pathway of visceral sense 躯干、四肢 Trunk、four limbs 头面部 Head and facial part 一般内脏感觉 General visceral sence 特殊内脏感觉 Special visceral sense 4 视觉传导通路和瞳孔对光反射通路 Visual conductive pathway and pupillary light reflex 5 听觉传导通路 Auditory conductive pathway 6 平衡觉传导通路 Conductive pathway of equilibratory sensation 皮质脊髓束 corticospinal tract 皮质核束 corticonuclear tract 皮质－新纹状体－背侧丘脑－皮质环路 cortical substance－neostriatum－dorsal thalamus －circuit loop of cortex 新纹状体－黑质回路 neostriatum－circuit of black substance 苍白球－底丘脑环路 pallidum－circuit loop of subthalamus 皮质－脑桥－小脑－皮质环路 cortex －bridge of varolius－cerebellum－ circuit of cortex 锥体束 pyramidal tract 运动（下行）传导通路 Motor（descending）conductive pathway 锥体外系 Extra -corticospinal tract 感觉传导通路的特点 Feature of sensory pathway 1?三级神经元参与传导 2 左右交叉(注意交叉部位) 3 上下倒置(但头面部本身是正立的) 4 损伤后引起相应的感觉障碍 感觉（上行）传导通路 Sensory（ascending）conductive pathway 1 躯干四肢本体觉和精细触觉传导路 Proprioceptive and fine touch pathway of trunk and limbs 1) 第一级神经元 Primary Neuron Cell bodies are located in the ganglion of spinal nerve 脊神经节 transmit sensory input from joint muscle, tendon （肌、肌腱和关节