The 'Atlas bone' in a rabbit has:

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(D) The atlas is the first cervical vertebra in mammals,including rabbits. Unlike typical vertebrae,the atlas is highly modified to support the skull

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Both the above are absent

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(D) The atlas is the first cervical vertebra in mammals,including rabbits. Unlike typical vertebrae,the atlas is highly modified to support the skull and facilitate its movement. It lacks a centrum and a neural spine. Crucially,it also lacks both anterior and posterior zygapophyses,which are typically found on other vertebrae to facilitate articulation between adjacent vertebrae. Therefore,both anterior and posterior zygapophyses are absent in the atlas bone.

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