What is the meaning of intra -articular?

intraarticular refers to the space inside the joint between two bones, specifically the part of the joint contained in the joint capsule. The meaning of "inside the joint", intra -articular can refer to the space itself or, in the case of moving joints of the body, any tissue or liquid found inside the synovial membrane, the joint capsule lining. In the synovial membrane there is synovial fluid, joint lubrication and joint cartilage, which provides a pillow between neighboring bone surfaces. Other types of joints may contain links in their intra -articular space that hold both bones together. In synovial or movable joints, these tissues are offders or outside the joint capsule. For example, fibrous joints are missing joint capsules and instead have only connective tissue that holds the bones together. This type of joint includes teeth in their drawers and rounded, plate bones forming the skull and connective tissue fills the intra -articular space between maintaining neighboring bones in contactamong themselves with a small to no movement between them.

Another classification of structural joints is the cartilage joint in which the intraarticular space contains only cartilage. The cartilage varies from bonds and other connective tissues, because they form a dense matrix that covers the end of the bone or fills the space between the bones rather than linearly connects them as small ropes. Cartilage, such as joints, such as joints between ribs and breasts, allow more movement than fibrous joints. For example, intervertebral joints of the spine allow a small peacelessness for individual joints, which are reflected in larger movements segments of multiple vertebrae.

The final classification of the joint according to the structure is a synovial joint, which in turn is divided into six sub-transaction according to the shape of the bones inside the joint. Regardless of the shape of the bone, synovial or movable joints such as elbow and knee, they have the same components in their intraarticuluman ÁRNí space. These include the ends of neighboring bones, synovial fluid reducing friction in the space between the bones, the cartilage between the bone surfaces for suspension and the absorption of shocks and the synovial membrane surrounding the cavity. With several exceptions, the ligaments are found in the extra -articular space of the synovial joint.