Ball-and-socket joints allow flexion, extension, rotation, abduction (moving away from the midline of the body), and adduction (moving toward the midline). Which of the following is an example of a ball-and-socket joint?

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The hip joint is an example of a ball-and-socket joint. It is formed by the head of the femur (ball) and the acetabulum of the pelvis (socket) and allows for flexion, extension, rotation, abduction, and adduction. The knee joint is a hinge joint, the elbow joint is a pivot joint, and the joints between bones of the fingers are hinge joints.

Ball-And-Socket Joints Allow Flexion, Extension, Rotation, Abduction (Moving Away from the Midline