Final answer:
Biaxial joints move in two planes, while multiaxial joints move in all three anatomical planes. Uniaxial joints only allow movement in a single plane.
Step-by-step explanation:
Biaxial joints allow for movement in two planes, while multiaxial joints allow for movement in all three anatomical planes. A uniaxial joint only allows for movement in a single plane. Examples of uniaxial joints include the elbow joint, while examples of biaxial joints include the metacarpophalangeal joint (knuckle joint) of the hand. Multiaxial joints, such as the shoulder and hip joints, allow movement in multiple directions.