Explanation

• The spine has 33 stacked vertebrae (small bones) that form the spinal canal. 

• The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx.

• Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.
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Additional Information "Important For exam point of view"

• The femur is the longest bone in the human body and the shortest bone is the stapes found in the middle ear. 
• A newborn child has 300 bones.
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• The human skull is generally considered to consist of twenty-two bones—eight cranial bones and fourteen facial skeleton bones.
• The human hand has 27 bones
  

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