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Vertebral Column - Definition


The vertebral column, also called the spine, is the skeleton of the back.
It consists of 33 stacked vertebrae, forming a column, with bends in the anteroposterior plane.

The vertebrae are the bones that differ according to the region of the back where they are positioned: cervical, dorsal, lumbar or sacrococcygiennes.
Each vertebra is formed by a cylindrical front portion whose upper and lower faces are articulated with the adjacent vertebrae by a fibrous elastic bead, the intervertebral disc. These discs allow mobility of the column and act as shock absorbers
Each vertebra has a hole in its rear part which delimits the spinal hole, and the stacking of vertebrae make a hollow bone tube, the spinal canal where is the spinal cord.
The spinal cord is a nerve center that allows the brain to connect to the rest of the body.