Single Choice

The cervical vertebra called axis provides head with sideways rotation. This can be because:

AIt is articulated to skull through occipital condyles
BIt is fused with 1$$^{st}$$ vertebra atlas
CIt is joined through elastic pads of fibrocartilage with other vertebrae, which provide mobility .
DIt contains odontoid process that fits Into the odontoid canal of atlas.
Correct Answer

Solution

The joint between the atlas and axis is a pivot type of joint. The axis has the odontoid process around which the atlas rotates. It allows the head to turn from side to side. It is also called the atloaxoid joint. The ligaments that serve to support and strengthen this joint are called the capsular; anterior and posterior atlantoaxial; and transverse ligaments.
So, the correct option is 'it contains odontoid process that fits Into the odontoid canal of atlas'.

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Which vertebra has the odontoid process?

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