"Which of the following statements regarding the C1 (Atlas) vertebrae, is INCORRECT?" Superior surfaces of lateral masses articulate with the parietal condyles This vertebrae has two arches Forms an articulation which allows the head to nod Yes This vertebrae contains no body or spinous process
Question
"Which of the following statements regarding the C1 (Atlas) vertebrae, is INCORRECT?" Superior surfaces of lateral masses articulate with the parietal condyles This vertebrae has two arches Forms an articulation which allows the head to nod Yes This vertebrae contains no body or spinous process
Solution
The incorrect statement is "Superior surfaces of lateral masses articulate with the parietal condyles". The correct statement should be "Superior surfaces of lateral masses articulate with the occipital condyles". The parietal condyles do not exist. The occipital condyles are the rounded protrusions on the base of the skull that articulate with the atlas (C1 vertebra), allowing the head to nod "yes".
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