Final answer:
The radiocarpal joint is strengthened and stabilized by extrinsic and intrinsic ligaments. An example of an extrinsic ligament is the radial collateral ligament, while an example of an intrinsic ligament is the articular disc (meniscus).
Step-by-step explanation:
The radiocarpal joint is strengthened and stabilized by both extrinsic and intrinsic ligaments. Extrinsic ligaments are located outside of the articular capsule, while intrinsic ligaments are fused to or incorporated into the wall of the articular capsule.
An example of an extrinsic ligament for the radiocarpal joint is the radial collateral ligament which connects the radius bone to the lateral side of the elbow joint. On the other hand, an example of an intrinsic ligament is the articular disc (meniscus) that provides padding and improves the fit between the bones in certain synovial joints.