What do joints classified as diarthroses allow for?

Joints classified as diarthroses are known for allowing full movement. These are synovial joints characterized by a joint cavity filled with synovial fluid, which facilitates a wide range of motion. The structure of diarthroses enables the articulation between bones to permit movements such as flexion, extension, rotation, and circumduction, making them essential for activities that require a high degree of mobility, such as running, jumping, and throwing.

In contrast, the other options refer to joints with limited or no mobility. Joints that allow only some movement are classified as amphiarthroses, and those with no movement at all, like the sutures in the skull, are classified as synarthroses. Therefore, the unique structural features of diarthroses specifically contribute to their capability for full movement, distinguishing them from other types of joints in the human body.