Line 34:
Line 34:
The number of caudal vertebrae varies greatly even within species. There is a progressive simplification of their form.
The number of caudal vertebrae varies greatly even within species. There is a progressive simplification of their form.
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===Joints of the Spinal Column===
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==Joints of the Spinal Column==
There are two types of joints:
There are two types of joints: