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Why Atlas and Axis are called deviant vertebra?
The vertebra which contains body,archand processes is called a typical vertebra.It has 3 processes.
1.Spinous process
2.Articular process
3.Transverse process
Articular processes are 2 not far away and wide off from each cranial and caudal aspects.
In atlas,the body and spinous process are absent.Theres a fovea dentis which is absent in typical vertebra.Again in axis,the cranial articular orocesses are absent.It has a projection known as odontoid process which is absent in typical vertebra.Thats why atlas and axis are called blinking vertebra.
The vertebra which contains body,archand processes is called a typical vertebra.It has 3 processes.
1.Spinous process
2.Articular process
3.Transverse process
In atlas,the body and spinous process are absent.Theres a fovea dentis which is absent in typical vertebra.Again in axis,the cranial articular orocesses are absent.It has a projection known as odontoid process which is absent in typical vertebra.Thats why atlas and axis are called blinking vertebra.
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