Nivelistö

Nivelistö is a Finnish term that translates to "joint" or "articulation" in English. It refers to the connection between two or more bones in the skeletal system. These connections are crucial for movement, providing flexibility and allowing the body to perform a wide range of actions. Joints are broadly classified into three types based on their structure and the degree of movement they permit. Fibrous joints, also known as immovable joints, connect bones with dense fibrous connective tissue and allow for very little to no movement. An example is the sutures of the skull. Cartilaginous joints are connected by cartilage and allow for limited movement. The joints between the vertebrae are an example. Synovial joints are the most common type and are characterized by a fluid-filled joint cavity that lubricates the joint and allows for free movement. These include hinge joints like the elbow, ball-and-socket joints like the shoulder, and gliding joints like those in the wrist. The structure of a synovial joint typically includes the articular cartilage covering the bone ends, a joint capsule, and synovial fluid. The proper functioning of nivelistö is essential for mobility and overall physical health.