acromioclavicular articulation

acromioclavicular joint

The joint plane between the medial margin of the acromion of the scapula and the lateral margin of the clavicle. The AJ is formed by the acromioclavicular ligament, the articular disk and coracoclavicular ligament, which has 2 portions, the trapezoid and conoideum.
References in periodicals archive ?
Both of these positions demonstrate the joint relationship of the proximal humerus and glenoid fossa; thus, the acromioclavicular articulation and the neck of the coracoid processes are well visualized.