Which ligament supports the acromioclavicular joint?

The acromioclavicular joint, which connects the acromion (part of the scapula) to the clavicle, is primarily supported by the acromioclavicular ligament. This ligament plays a crucial role in providing stability to the joint by connecting the acromion to the clavicle, helping to maintain the alignment of these two bones during shoulder movements.

The acromioclavicular ligament is particularly important because it helps to limit excessive movement between the clavicle and the acromion, thereby preventing dislocations or other injuries that could occur during activities involving overhead motions or forceful impacts on the shoulder.

While other ligaments mentioned contribute to shoulder stability, they serve different functions or support different joints. For instance, the coracoacromial ligament provides a supportive arch over the shoulder joint but does not stabilize the acromioclavicular joint itself. The coracoclavicular ligament, which runs from the coracoid process of the scapula to the clavicle, does assist with stability, particularly in preventing vertical dislocation of the acromioclavicular joint, but it does not directly support it like the acromioclavicular ligament does. The glenohumeral ligament relates to the stability of the gl