Comparative Study of Atlas Vertebra: Frog, Varanus, Fowl, Rabbit

Codynn
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Atlas of Frog

i) It is the first vertebra.

ii) It is small and ring-like in form.

iii) Centrum and neural spine are reduced.

iv) Transverse process and prezygapophysis absent.

Atlas of Varanus

i) It is the first vertebra.

ii) It is small and ring like in shape.

iii) It has no distinct centrum.

iv) Neural canal divided by ligament into the dorsal and ventral portion.

Atlas of Fowl

i) It is the first vertebra of the cervical region.

ii) It is small ring-like in appearance.

iii) Centrum, neural spine, transverse process and pre zygapophyses are absent.

Atlas of Rabbit

i) It is the 1st cervical vertebra.

ii) It is a ring like in shape.

iii) Neural spine is well developed and laterally compressed.

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