The basic SCARA mechanism is a two-link arm, similar to a human arm. The end of the second joint can move through the XY-plane by rotating at the base and elbow of the mechanism. [How To ...

Four important synovial joints used in most sporting actions are the elbow and shoulder joints in the arm, and the knee and ... are both hinge joints. A hinge joint is a type of synovial joint ...

Ball and socket joints also allow flexion and extension. Flexion of the shoulder joint occurs when the humerus (upper arm) moves forwards from the rest of the body, which happens at the end of an ...