Which joint is present between the atlas and axis?
A
Pivot joint
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B
Hinge joint
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C
Ball and socket joint
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D
None of the above
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Solution
The correct option is A Pivot joint 1) Pivot joint is also called a rotatory or trochoid joint. This allows swivelling movement and it is present between the first and second cervical vertebrae i.e. C1 (atlas) and C2 (axis). This is also called an atlanto-axial joint. It is the type of synovial joint.
2) A hinge joint is a type of synovial joint that allows motion in one plane and this is made up of two or more bones with the articular surfaces that are covered by synovial fluid which reduces friction.
3) Ball and socket joint is also called a spheroidal joint; it is a type of joint which allows movement in all the three planes. The common examples of this are hip and shoulder.