椎间盘 Intervertebral disc
（重定向自Fibrous ring of intervertebral disk）
椎间盘是连接相邻两个椎体的纤维软骨盘（第1及第2颈椎之间，还有尾椎之间没有椎间盘）使脊椎可以在相当的角度之间活动，有如避震器的功能。成人共有23个椎间盘。椎间盘对脊柱、大脑和其他结构（例如神经）起到缓冲保护的作用。椎间盘占脊柱总长的1/4。
Fibrous ring of intervertebral disk
中文百科
英语百科
Intervertebral disc 椎间盘
（重定向自Fibrous ring of intervertebral disk）
An intervertebral disc (or intervertebral fibrocartilage) lies between adjacent vertebrae in the vertebral column. Each disc forms a fibrocartilaginous joint (a symphysis), to allow slight movement of the vertebrae, and acts as a ligament to hold the vertebrae together. Their role as shock absorbers in the spine is crucial.
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