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प्रश्न
What are the five regions of the vertebral column?
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उत्तर
The five regions of the vertebral column are:
(i) Cervical region - It has seven cervical vertebrae. First vertebra is called atlas, second is axis while the resta re called typical cervical vertebrae.
(ii) Thoracic region - It has 12 thoracic vertebrae. Neural spine of these vertebrae is long and pointed, which provides surface for muscle attachment.
(iii) Lumbar region - Has 5 lumbar vertebrae.
(iv) Sacral region - Has 5 sacral vertebrae which are permanently fused to each other.
(v) Caudal region - Has 4 caudal vertebrae, which are fused to form a triangular structure called coccyx.
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