How many vertebrae in a person, it is not difficult to find out

The vertebral column performs a mass in humansfunctions: it protects the spinal cord, supports the body in space, serves as a fixator for organs and muscles, and also provides movement. It consists of separate elements called vertebrae. As they move away from the head, they carry a lot of weight and, due to this, they become bigger and more massive.

Вопрос о том, сколько позвонков у человека, решён a long time ago. In total, they range from 32 to 34, and they are separated from one another by intervertebral discs, due to which the trunk movements are provided. The spinal column is divided into several departments. The first department is called the cervical, the second - the thoracic, the third - the lumbar, then the sacral and coccygeal divisions. The structure of each component of the spine is similar except for a few differences. Significant differences have the first and second.

So how many vertebrae a person has in each department?In the cervix, seven are isolated, in the thoracic - twelve, the lumbar is represented by five massive vertebrae. Five sacral fused into a single monolith, which is called the sacrum. But the rest of the tail consists of vertebrae, represented in the number from three to five.

Each department has its anatomical features.It is best to study the structure of the human spine in pictures. They can be an alternative to a natural drug or a moulage. The vertebra is the simplest element that includes the human skeleton. The spine, despite its simplicity, is a very important part, traumas or injuries which can lead to serious consequences.

Мы уже выяснили, сколько позвонков у человека, it remains only briefly to characterize each of them by department. The first cervical is called "atlant", the head is directly attached to it. He has no body, it passed to the second cervical vertebra in the form of a tooth. His own body was preserved in other representatives of the cervical department. On the sides of the cervical vertebrae there are holes that form a channel. There is an artery feeding the brain. And vertebrae together with representatives of other departments limit the canal of the spinal cord, in which it actually passes.

In the thoracic vertebrae are distinguished by the presence offossa. In these pits are attached the ribs, which form the rib cage together with the sternum. The vertebral bodies in this section are more massive, and the canal for the artery is absent; there is only a channel for the spinal cord. The lumbar region bears almost the entire burden of the human body and has large and massive vertebrae.

The lumbar region is followed by the sacrum.This is a bone-monolith, it is involved in the formation of the pelvis. From it comes a large number of nerves that go from the holes in the pelvic cavity and on the back. In the sacrum distinguish a smooth pelvic surface (or front) and uneven dorsal (or posterior). The answer to the question of how many vertebrae a person has in the coccygeal department is ambiguous - their number varies. This department has no great value. Muscles are attached to it. The tailbone is able to deviate during childbirth in women, thereby increasing the size of the exit from the small pelvis.