Spine
THE SPINE (OR VERTEBRAL COLUMN) has two main functions:
it serves as a protective surrounding for the delicate spinal
cord and forms the supporting back bone of the skeleton.
The spine consists of 24 separate differently shaped bones
(vertebrae) with a curved, triangular bone (the sacrum) at
the bottom. The sacrum is made up of fused vertebrae; at its
lower end is a small tail-like structure made up of tiny bones
collectively called the coccyx. Between each pair of vertebrae
is a disc of cartilage that cushions the bones during movement.
The top two vertebrae differ in appearance from the others and
work as a pair: the first, called the atlas, rotates around a stout
vertical peg on the second, the axis. This arrangement allows
the skull to move freely up and down, and from side to side.
please define it in a simple language
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Answer:
1.Neck cervical vertebrae
2.Thoracic vertebrae
3.Lumbar vertebrae
4.Sacrum
5.Coccyx
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