Assertion :Arthiculation between the occipital condyles and the atlas vertebra forms a hinge joint Reason: It permits the head to move in one plane only,i.e., nodding of head

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The arthiculation between the occipital condyles and the atlas vertebrae is also called as atlanto-occipital joint and it helps the head to move in one plane that is, nodding of the head it is also called as flexion and extension of the head.
Therefore, both assertion and reason are correct and the reason is the correct explanation for the assertion.
therefore, the right answer is option 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

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