The combination of vertebrae - The spine is designed so that was solid, but at the same time flexible to permit a person upright position with the greatest range of motion.
This is accomplished by alternating solid bony parts and soft parts, which are mutually elastically connecting. Individual vertebrae are in addition to the joints in the combined system of soft tissue, i.e. ligaments and muscles, and are interspersed with intervertebral discs find the advantages
The intervertebral discs made of flexible cartilage mass capture and disperse shock waves acting on the spine, which protects the spinal cord and spinal nerves their total of 23, less than vertebrae, because these plates is missing between the head and the first cervical vertebra and between the carrier and čepovcem.
Plate at one person to another, for example, is denser and more or less resistant to shocks. Plate consisting of a soft jelly-like solid core surrounded by a fibrous ring core adapts to changes in the shape of discs. Its height affects the spine, its shape and increases its mobility.
On the disc is placed enormous pressure, which is equal to approximately 10 kg per square centimeter with every load that we raise the pressure is greate find the advantages
During the day the space between the vertebral bodies is reduced, therefore the height of a person can be night of 2-3 cm lower than in the morning. It is probably due to the extrusion of small quantities of fluid from the intervertebral disc.