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Per NCERT, the NECK joint (connecting skull to backbone) allows side-to-side 'no' head movement — it is which type?
ABall and socket joint
BPivot joint — turns like a doorknob in its socket
CHinge joint
DFixed joint
Answer & Solution
Correct answer: B. Pivot joint — turns like a doorknob in its socket
Per NCERT §3.5.3, pivot joint at neck allows rotational head movement. The other joints don't.
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