What is the joint?
joint joint, also called gontymus , is a joint that allows only movement back and forward. The joint is a place where two bones articulate or are usually attached to allow movement. The body has several types of joints that can be classified on the basis of structure, function, biomechanical classification and range of movement. Any joint may fall into several of these categories. Classification of joint joints is based on the range of movement. Some of the known joints of the joints are the elbow that connects to the humerus with the ulna, and the knee that connects with the tibia. Like the door, these joints can move back and forth, but cannot turn or move in other directions. Although ginglingm they only move in one plane, they allow very high movement in this plane and are therefore found in the limbs.
As a hardware hinge, each joint in the fight must be lubricated. While the door hinge may require oil to allow its components to allow easilySlide without whistling or creating harmful friction, the joint in the body requires synovial fluid. A small amount of this lubricant, which resembles an egg fluid, is excreted in each joint by a synovial membrane. This lubrication is important while maintaining a large, painless range of one -way movement that must have The joints of the joints belong to the joints of joints called synovial joints named after the synovial fluid, which all joints in this class have. In addition to the joint of the joint, the class of synovial joints also includes joints with balls and plinths, sliding joints, condyloid joints, swivel joints and gable joints. All synovial joints are characterized by joint cartilage, which cover the joint surfaces of the bones or the area where bones are attached. The articular cartilage is the type of hyaline cartilage, connective tissue composed of type II collagen and proteoglycan. This smooth cartilage protects the joint of the jointBefore wearing and creating pain due to friction.
The joint is closed by a synovial membrane and sits near a bursts, which also excludes lubrication fluid. In the curtain, the cylindrical head of one bone fits into the socket of the other bone, allowing perpendicular movement. Consider the elbow where the ulna and the radius of the forearms articulate with the bone of the upper arm, the humerus. The ulna head sits in the humerus drawer and allows ulny to move to the humerus with the help of triceps and biceps. As in other joints, the joint movement of the joints is controlled by antagonistic muscle pairing, such as triceps and biceps that are withdrawing and relaxing to extend or reduce the angle between the upper arm and the forearm.
movement should occur without discomfort, but several medical conice can prevent painless movement of the joints. Trauma can cause a fracture or dislocation of the joint, causing friction or pressure on nerves. Bursitis, inflammation of the burst due to injury or chronic joint overuse may also cause the joint. ANDRtritis, especially rheumatoid and osteoarthrosis, usually causes inflammation and joint pain. Osteoarthrosis is an irreversible disease that usually stems from chronic tension in the joint, and rheumatoid arthritis is a progressive autoimmune disorder for which treatment is known but treatment is unknown.