Ball-and-socket joint

Definition

A ball-and-socket joint is a type of synovial joint in the human body where a rounded bone head (the ball) fits into a concave articulation (the socket), allowing multi-directional movement and rotation. This joint provides the greatest range of motion compared to other types of joints.

Related terms

Synovial Fluid: A viscous fluid found within synovial joints that reduces friction between articular cartilages during movement.

Articular Cartilage: A smooth, white tissue that covers the ends of bones where they come together to form joints, facilitating smooth movements.

Range of Motion: The full movement potential of a joint, usually its range of flexion and extension