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Spine: Support to the body
Also known as the backbone, the spine is made up of bones called vertebrae. It is a very flexible structure that gives movement and support to the body.
The spine is attached to the spinal cord, finalizing and protecting it. She is responsible for supporting the head, fixing the ribs and the muscles of the back. Their curvatures are responsible for strength, support and body balance.
Bones that make up the spine
The spine of an adult person is composed of 26 bones and 33 vertebrae: 7 cervical, 12 thoracic, 5 lumbar vertebrae, 1 sacrum (formed by 5 fused vertebrae) and 1 coccyx (formed by 4 fused vertebrae).
Of all vertebrae, only two (the sacrum and coccyx) do not move, the remaining vertebrae (cervical, thoracic and lumbar) are movable.
Between the vertebrae there are discs that form joints, which enable the movement of the spine and the absorption of impacts.
Major problems affecting the spine:
- Kyphosis: It is an exaggerated deviation of the thoracic curvature that leaves the person with an arched back, retracted chest and projecting shoulders forward;
- Scoliosis: lateral deviation of the spine, usually located in the thoracic region;
- Lordosis: Deviation that usually occurs in the pelvis region and results in exaggerated curvature;
- Disc herniation: displacement of the disc that is located between the vertebrae, occurs more frequently in the lumbar region, because this is the region of the spine that supports the greatest weight, besides being the one with the greatest curvature;
- Arthrosis: popularly known as a parrot's beak, is originated by friction between the vertebrae.