椎间盘 Intervertebral disc
（重定向自Anulus fibrosus disci intervertebralis）
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。
Anulus fibrosus disci intervertebralis
中文百科
英语百科
Intervertebral disc 椎间盘
（重定向自Anulus fibrosus disci intervertebralis）
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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