1. a freely movable joint in which bones are connected by ligaments and cartilage, allowing a wide range of motion
Usage: anatomy; also called a synovial joint

Examples

• The knee is a diarthrosis that permits bending and straightening of the leg.
• A diarthrosis contains synovial fluid that reduces friction between the bones.
• The shoulder joint is a diarthrosis with a wide range of motion.
• Unlike a synarthrosis, a diarthrosis allows significant movement between bones.
• The hip is classified as a diarthrosis because it can move in multiple directions.
• Diarthrosis joints are essential for activities like running, jumping, and throwing.