The spinal column consists of approximately 33 vertebrae: twenty-first cervical vertebra (7 thoracic and 7 lumbar), the second thoracic vertebra (6 thoracic and 6 lumbar), the third cervical vertebra (5 thoracic and 5 lumbar), the fourth thoracic vertebra (6 thoracic and 6 lumbar), the fifth cervical vertebra (6 thoracic and 6 lumbar), and finally the sixth cervical vertebra (6 thoracic and 6 lumbar). The six cervical vertebra is one of the five fused sacral vertebrae. The sacral is the joint between the fifth and sixth cervical vertebra, which is the part that connects the thoracic and lumbar vertebrae.

 

This part is the source of many common nerve roots. The spinal cord, nerves, muscle and blood supply are all located here, especially in the lower neck area. In particular, the six cervical vertebra is linked to the brain through the cervical ganglia.

 

The six cervical vertebra serves as the largest and a very large part of the trunk.

 

It is also the seat of the cerebrum, which has many important functions, including control of the major organs and the regulation of the circulatory system

 

The main functions of the cerebrum include:

 

• Control and regulation of the cranial nerve. – Controlling and regulating the gastrointestinal tract. – Controlling and regulating the respiratory tract.
• Coordinates movement of the muscles of the trunk, particularly the muscular diaphragm, which is responsible for the involuntary contraction and relaxation of the muscle tissue of the diaphragm. – Coordinates the functions of the cardiovascular and respiratory systems. – Coordinates the digestive functions.

 

Vertebra A: The second most important vertebral segment. It is joined by Vertebra B. Vertebra C is the third most important vertebral segment. Vertebra D is the fourth most important.

 

The number of vertebra's appearance depends on the age and health of the individual. The appearance of a single vertebral segment is variable. For instance, a single lumbar vertebra may appear as a series of vertebral discs or a pair of vertebral discs (radially symmetric) or it may be asymmetric, with one vertebra projecting more than the other.

 

The vertebrae are divided into groups, based on their shape and arrangement and on the arrangement of the spinal cord that surrounds them. These groups are arranged into two main groups, namely the cervical group and the thoracic group.

 

The cervical group contains five vertebrae, while the thoracic group contains six vertebrae. Each of the two groups has about 300 different vertebrae.

 

The first cervical vertebra is attached to the lumbar neck vertebra. This is the largest of the cervical vertebrae. It has a base length of about twenty-five inches. It is oval in shape and is about forty-one percent of the length of the lumbar neck vertebra.

 

The next cervical vertebra is the largest of the cervical group contains two lumbar vertebrae, which have a base length of about twenty-four inches. It has a slightly curved triangular shape and has an angle of forty-two degrees.

 

The third cervical vertebra is the smallest of the group, having a base length of twenty-eight inches and a length of twenty inches. It is oval in shape. It is also slightly curved and has a base length of eighteen inches.

 

The thoracic vertebra has a base length of eighteen inches and a length of twenty-five inches. It has a base length of twenty-four inches.

 

The last cervical group consists of six lumbar vertebrae, each of which is about fifteen inches long. They have a base length of twenty-four inches and a length of approximately fifty inches.

 

Some people have more than one cervical group. This increases the number of vertebrae by approximately thirty percent. Thus, if you have more than one group, you can assume that each group is separate.

 

Most patients who suffer from a slipped disc will have more than one cervical group. If the disc is misaligned, the misalignment can cause the discs to move out of place. and thus cause the loss of some of the discs in that group. This can result in difficulty moving the spine, because the patient may not be able to reach the other cervical group.