What is a ball and a socket joint?

There are many different types of joints in the human body, but the species that allows the largest range of movement is the ball and socket joint. These joints are present where one bone ends with a spherical button, which lies in a circular depression in the other bone. Theoretically, this arrangement allows 360 degrees of rotation - in other words a full circle. Each arm has a ball and drawer joint where the upper arms meet with a shoulder blade. The sides also have a ball and drawer joint on both sides, where femur meets the pelvic bone. It is the most common type of joints in the human body. In the synovial joint, both bones are not connected in the same way as the other joints, but have another tissue around moving bones to provide lubrication and nutrition. At the end of each bone, where the other touches, is a layer of cartilage, which allows you to bone around you with a minimum of friction. Surrounding cartilage is a substance similar to a fluid called synovial fluid. This helps to lubricate the joint and also helps cartilage cells efficiently.

cartilage and synovial fluid are contained in the synovial membrane, which in turn is contained in a fibrous structure called joint capsules. Behind the capsules of the joints are ligaments that hold the bones in place, and muscles and tendons that move bones. This is the basic structure of each ball and socket.

In some cases, there are mild variations. For example, the shoulder joint contains a small bag called Bursa, filled with synovial fluid, which helps many tendons, bones and muscles in the shoulder to slide each other around another. It also acts as a pillow between the joint itself and the nearby bones.

Due to the complex nature of ball and plinth joints, these are usually those that are most exposed to diseases and wear. Surgical replacement of hips and shoulders is not unusual if the joints become so much that they cause severe pain when used. Other diseases and problems characterized by inflammation and/or degeneracOut, such as arthritis, they can redirect particularly heavy tolls on the joints of the balls and sockets, because we rely on them on it.