Human spine, structure and functionality

The spine of a person whose structure corresponds to the basic tasks of vital activity is the basis of the whole organism, the backbone of the skeleton, skull, numerous internal organs, muscle mass and fatty deposits. The load on the spinal column is considerable, but the body weight is distributed evenly, part of the load lies on the ribs of the chest and pelvic bones. Thus, a conditional weight balance is observed.

Main departments

The basic parts of the human spine are lumbar and sacral, thoracic and cervical. The upper part, cervical, consists of 7 vertebrae of different configuration and size. Below are 12 pieces of the thoracic part, they are much larger than the cervical and connect to the ribs of the chest. The thoracic part passes into the lumbar region of five vertebrae, they are the main load. Then comes the sacrum of five inactive vertebrae.

The structure of the spine of a person is quite complex, multicomponent. It has a curved shape that allows you to maintain balance, and also gives the entire body the damping properties necessary for fast and sharp movements. The spine of the person whose structure we are considering is one of the most complex organs. It begins with the first and second vertebrae of the cervical region. The first, called "atlant" consists of bone arches and articulates directly to the base of the skull. The next "epistrophe" partially enters the "atlant". Thanks to this pair, the human head can turn in different directions and bend over.

Vulnerability

The remaining vertebrae are identical in shape and differ only in size. They are all surrounded by the muscles of the chest, abdomen, pelvis and back.

Human spine, structure Which is due to the multitude of functions that he has to perform, is a vulnerable part of the human body. Even being immune to the immune system from attacks of all kinds of viral infections, he is exposed to mechanical effects. Even an easy, sometimes quite minor injury, inflicted from the outside, can disrupt its functionality. Not to mention serious injuries with damage to the intervertebral articulations, which inevitably result in disability.

Spinal cord

Vertebrae have a rounded shape with several processes, through which the body of a given vertebra articulates with its neighbors. The principle of alignment allows them to move in a certain amplitude. Disks of cartilaginous tissue, providing separation of bone surfaces, serve as an elastic lining between the vertebrae. Inside the spine along the entire length there passes a special hole-channel for the spinal cord - the basis of the hematopoietic system of the body. Any bias can squeeze the brain or even destroy it. The spine of a person whose structure is impeccable in terms of functionality, is still not immune from damage. Therefore, overloads and injurious body movements should be avoided.