An articulated joint is a type of joint that allows movement in a specific direction. Synonyms for this term include movable joint, pivot joint, and hinge joint. Movable joint implies that the joint is capable of movement, while pivot joint refers to a joint that rotates around a central axis. Hinge joint indicates that the joint can move in only one direction, like a door hinge. Other synonyms for articulated joint may include ball-and-socket joint, saddle joint, and ellipsoidal joint. These terms all describe specific types of joints that allow for different movements and ranges of motion. Understanding the nuances of these synonyms can help medical professionals diagnose and treat joint-related health issues.