Central Nervous System The Nervous Pathways 传导路

Presentation on theme: "Central Nervous System The Nervous Pathways 传导路"— Presentation transcript:

1 Central Nervous System The Nervous Pathways 传导路
Ling Shucai

2 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

3 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

4 躯干和四肢深感觉传导路

5 浅感觉传导路

6 视觉传导路

7 听觉传导路

8 平衡觉传导路

9 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

10 Corticospinal tract 皮质脊髓束

11 锥体交叉

12 Coticonuclear tract 皮质核束

13 核上瘫与核下瘫

14 皮质—脑桥—小脑—红核—脊髓通路

15 皮质—纹状体—皮质环路

16 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？