The radial collateral ligament is a crucial component of the human body that stabilizes the elbow joint. This ligament is also referred to by several synonyms that you may come across in medical literature. Some of the common synonyms for this ligament include the lateral collateral ligament, the lateral ligament complex, the annular ligament, the radial ligament, and the lateral ulnar collateral ligament. These different names signify the various attachments of the ligament to the bones of the forearm and the elbow joint. Regardless of its name, the radial collateral ligament plays a vital role in maintaining the stability and function of the elbow joint.