Joint Atlantoaxial Lateral

The Atlanto-axial joint (lat. Articulatio atlanto-axialis) is a paired joint formed between the anterior arch of the first cervical vertebra and the posterior surface of the body of the second cervical vertebra.

It is one of the most mobile joints in the human body, as it allows you to move your head in different directions: bending forward, backward, lateral bending, turning and rotation. This joint also provides stability to the spine and protects it from injury.

The Atlanto-axial joint consists of two surfaces: anterior and posterior. The anterior surface is formed by the posterior arch of the first cervical vertebra, and the posterior surface by the body of the second cervical vertebra. Between these surfaces is articular cartilage, which allows gliding between the vertebrae.

This joint has two synovial joints: superior and inferior. The superior synovial joint is located between the anterior surface of the first cervical vertebra and the posterior edge of the body of the second cervical vertebra. The inferior synovial joint is located between the posterior surface of the second cervical vertebra and the anterior surface of the third cervical vertebra.

The atlanto-axial joint (lat. articulatio atlantoaxialis) is the articulation between the occipital bone of the skull and the first cervical vertebra. It is one of the most important joints in the human body as it provides mobility to the head and neck and is also responsible for transmitting forces and movements between these two bones.

The atlantoaxial joint has a unique structure that allows it to perform many functions. It consists of two surfaces: the upper surface is formed by the occipital bone, and the lower by the body of the first cervical vertebra. Between these surfaces is the intervertebral disc, which provides shock absorption and flexibility to the joint.

An important aspect of the atlantoaxial joint is its stability. It must be strong enough to withstand heavy loads, but still provide sufficient flexibility and movement. The joint has several ligaments that help maintain its stability: the anterior and posterior ligaments of the atlanto-occipital joint, and the posterior ligament of the atlantoaxial joint. These ligaments limit movement of the head and neck and provide stability to the joint.

However, the atlantoaxial joint can also be susceptible to injury and disease. For example, an injury can damage a ligament or disc, which can lead to joint instability and pain. In addition, some diseases, such as arthritis or osteochondrosis, can lead to degeneration of joint tissue and impairment of joint function.

In general, the atlantoaxial joint is an important element in the mechanism of movement of the head and neck. It provides stability and flexibility, but can also be susceptible to injury and illness. Therefore, it is important to take care of the health of this joint and avoid excessive stress on the neck and head.