The structure of the human spine: diagram, label the major divisions. Features of the structure

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2019-09-18 19:00:39

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The Spine is one of the most important structures of the human body. On him we rely and use it to move. The curved shape of the spine — elastic and flexible, thereby soften various concussions that may occur with heavy loads. It allows the man to go straight and maintains the center of gravity. In this article we will look at the structure of the human spine. The circuit designation, function and anatomy will reveal its detailed description.

the structure of human spine diagram of the symbol

Functions

The Spine plays a Central support function. To imagine life without this organ impossible. If its work is disturbed, the person not only can't walk, but simply standing. Its state depends the health in General. If you look at the structure of the human spine (diagram symbol is shown below), it is noticeable that he appears in the form of a flexible rod. Attached humerus, limb. It is a complete Foundation of the entire body because it also keeps the head, ribs, collarbone and scapula.

The Vertebral column protects the spinal cord, from which depends the functioning of the most important systems and organs. Blows, injuries, adverse conditions in the external environment cause great harm. From all these influences before us protects the skeletal system. Thanks to the joints located between the vertebrae, there is a movement. In the spinal column there are almost fifty. Examine the structure of the human spine, diagram, symbol which shows all its importance and value.

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the structure of human spine diagram marking in Russian

Overall structure

In a spine includes five departments with the appropriate number of vertebrae. On the sagittal and frontal planes are curves. Thanks to them, the load is distributed evenly. The curves are of several types: bulge forward is called lordosis, back — kyphosis, in the direction — scoliosis.

If you look at the structure of the human spine, diagram, designation which most clearly illustrates this, note the natural curves. However, they can be excessive. Then talk about pathological changes. Structural cohesion is ensured by the joints, ligaments and inter-vertebral discs which motion give a cushioning effect. This unique structure of the human spine allows us to move painlessly.

the structure of human spine diagram of the function symbol

Divisions of the vertebral column

In the spinal column there are five otdelov:

  • SANY;
  • Grudnoi;
  • Pesnicky;
  • Crestec;
  • Kopcik.

The Vertebral column starts with the cervical spine, which is represented by the convex curve. It is the most mobile, thanks to which a person is able to tilt and turn his head and move my neck. This is ensured by the first two segments. They have a ring shape and attached special spikes to the occipital hole.

Cervical can be called the main. Three of the seven vertebrae have a special structure. At first, having no body, but consists of two arcs, draws the base of the skull. This vertebra is called Atlas. Following bone, epistrophy, too much. On the front it has a odontoid process that serves as the spine, due to which Atlas rotates. Cervical spine closest to the brain. It provides a normal life "gray matter”. Damage here can lead to death.

Thoracic (in medicine it is called thoracic) twisted C-shape. It is directly connected with the rear wall of the chest due to ribs which are attached to the vertebrae. This spine sedentary again, due to the proximity of the thorax. But here, after all possible inclinations. Just their degree is significantly less in comparison with other departments. Limit the movement of the ribs, as they protect such important organs as the lungs and heart. Intervertebral discs are low, but the spinous process — long enough.

The Lumbar (or lumbar) represented the largest vertebrae. He is endowed with a smooth curve connecting the sacral and thoracic departments. The whole upper part of the body presses on it, which it accounts for serious work. This section together with the chest takes on the heavy loads at walking, jumping or running, he is responsible for the attenuation of the whole body. Therefore, in these parts most often happen pathology or injury.

Two lower division only conditionally called vertebrae. The sacrum consists of a triangular bone consisting of five fused vertebrae. Thanks to him, the connection of the spine with the pelvis. The coccyx is the lower part of the column. It kind of resembles an inverted pyramid, curved shape. The coccyx connects the ligaments and muscles related to urinary system. It transfers the load to the pelvis being at the same time the fulcrum. It can be called the rudiment of the tail, which is partly rooted in the pelvis. Female skeleton differs from the male in this part. The bones of the coccyx are able to disperse slightly before birth, increasing the diameter of the birthing canal, thereby facilitating the process for both mothers and baby. Belowpresents the full map, which describes in detail the structure of the human spine. Diagram, label, options also are available.

the structure of human spine diagram marking anatomy

Vertebrae

The spine consists of 24 vertebrae connected to each other sequentially. They belong to:

  • Cervical (seven units);
  • Breast (twelve);
  • Lumbar (five).

Each of the vertebrae has a cylindrical shape. And plays an important role of a reliable element of supporting the load. It has the shape of an arc is a semicircle with the outgoing of him processes. On the ear and vertebral body creates a hole. Obrazujas on each vertebra, all together they create the spinal canal, which houses the spinal cord, nerves, and vessels.

the structure of human spine diagram of the marking function and anatomy

Intervertebral discs

These elements have a flat rounded body with a special liquid inside and the disc nucleus. The structure of the human spine, (diagram, label you can also see in the picture below), thanks to elastic wheels, provides shock absorption during vertical movement. The fibrous ring to prevent displacement of the vertebrae, surrounds purposee core. It may be weakened in diseases of the spine, and sometimes even to rupture, which leads to intervertebral hernia.

Joints

The Spine cannot exist without joints. They connect the vertebrae. The joint is covered with a smooth sheath, cartilage, whereby the friction of the vertebrae does not appear pain. Inside the joints is a fluid, nourishing and lubricating the cartilage. Because of this, people tilted, rotated in different directions and make other movements of your body.

Bundles

Bundles are of two types:

  • Yellow, unifying arc;
  • Rear trailing connecting the vertebrae in this part of the column.

In the presence of pathological changes and high mobility of the joints and discs ligaments try to compensate. The result is hypertrophy. Look at the structure of the human spine: a diagram marking in Russian is provided below. Thanks to the image is easy to understand how many there are of the vertebrae and to which Department they belong to.

what structure is the human spine

Muscle

Muscle tissue that surrounds the spine. Because of this, significantly reduces the risk of mechanical damage. On the back there are superficial and deep muscles. First help work the shoulders and straightening the back. They include a wide, trapezoidal, rhomboid, serratus.

Internal organs

Inside the spinal column is the spinal cord, surrounded by a solid, arachnoid and soft shells. This body originates in the brain and ends on the first and second lumbar vertebra. Each division is responsible for certain organs of the human body. This function is provided by the work of nerve impulses that go from the spinal cord and move directly to the internal organs. The nerve roots and cells in the spinal cord there is a huge amount. And the structural features of the spine allow to enter them through the intervertebral foramen.

Aging

Like any organ of the human body, the spine in old age grows old. Bad habits have a detrimental effect on it. Due to dehydration amortisation properties are lost, and ligaments and bones cease to be flexible enough and start to get thicker. Degeneration can occur in the disk, which develops most of the pathologies.

the unique structure of the human spine

Conclusion

When we study the structure of the human spine, diagram, symbol, anatomy of paramount importance. Involuntarily you catch yourself thinking that, as always, in this complex organism there is nothing superfluous. Each segment performs its task. As a little unit, it provides together with the other structures of the whole body.

Knowing what structure is the spine, it becomes clear how important it is to give it due attention. A sedentary lifestyle causes tension in the muscles of the back, some of which do not support the spine at all. Such a regime leads to the fact that some departments are subjected to an increased load, and others, there is a risk of injury even with little fatigue.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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