The spine is a column of bones that make up the axial skeleton (axial skeleton ) form a frame for the torso yet provides robust and flexible support and also protects the delicate spinal cord in the spine. The spine consists of 33 vertically stacked vertebrae. The vertebrae are connected to each other by facet joints at the back of the spine.
Gee whites which ensure that the vertebrae to move. Relative to each other The vertebrae are stabilized by connective tissue and, more importantly, they are separated by inter vertebral discs, which act as shock absorbers serve.
The spine can be divided into five parts: (top to bottom) 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, sacrum (the fifth sacral vertebrae) and the tail-or coccyx that consists of 4 vertebrae. The spinal cord runs through a channel in the back of the vertebrae, from the brain stem to the lumbar vertebrae.
From the spinal cord branching nerves that transmit signals to the entire body, as carriers of commands for motion and other bodily functions. Anatomically speaking, the shape of the spine of an adult four curvatures. The thoracic vertebrae and the sacrum are slightly curved forward, the neck and lumbar vertebrae backwards. This unique shape of the spine can bear the weight of the human body.
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