Central Nervous System The Nervous Pathways 传导路 Ling Shucai
The Nervous Pathways The sensory (ascending) pathways 感觉(上行)传导路 The motor (descending) pathways 运动(下行)传导路
Ⅰ.The sensory (ascending) pathways The conscious deep sensory pathways 意识性深感觉传导路 The deep sensory and fine touch pathway of trunk and limbs ★ The deep sensory pathway of head and face The unconscious deep sensory pathways 非意识性深感觉传导路 The superficial sensory pathway of trunk and limbs ★ 躯干四肢浅感觉传导路 The pathway concerned with pain and thermal sensations The rude tactile and pressure sensation pathway The superficial sensory pathway of head and face ★ 头面部浅感觉传导路 The visual pathways ★ 视觉传导路 The auditory (or acoustic) pathways ★ 听觉传导路 Equilibratory pathways 平衡觉传导路
躯干和四肢深感觉传导路
浅感觉传导路
视觉传导路
听觉传导路
平衡觉传导路
Ⅱ.The motor (descending) pathways 运动(下行)传导路 The pyramidal system 锥体系 ★ The corticospinal tract 皮质脊髓束 The coticonuclear tract 皮质核束 The extrapyramidal system 锥体外系 The cortico-neostriated body-dorsothalamus-cotex circuit 皮质-新纹状体-背侧丘脑-皮质环路 The neustriated body-substantia nigra circuit 新纹状体-黑质环路 The globus pallidus-subthalamus circuit 苍白球-黑质环路 The corticoponto-cere bellar-cortex circuit 皮质-脑桥-小脑-皮质环路
Corticospinal tract 皮质脊髓束
锥体交叉
Coticonuclear tract 皮质核束
核上瘫与核下瘫
皮质—脑桥—小脑—红核—脊髓通路
皮质—纹状体—皮质环路
思考题 试述左臂遭蚊虫叮咬时,右手拍打蚊虫的神经通路。 叙述主要的上、下行传导路(发起、换元部位、交叉部位以及最终投射部位)。 什么是瞳孔对光反射?请描述其反射弧。 什么是上运动神经元?什么是下运动神经元? 什么是核上瘫?什么是核下瘫?