Fig. 2
From: Anatomical study of the sternoclavicular joint using high-frequency ultrasound
Anterior view of the right sternoclavicular joint without (a) and with (b) annotations. The sternocleidomastoid tendons and the pectoralis major muscle have been removed, exposing the anterior sternoclavicular ligament, interclavicular ligament and costoclavicular ligament. c Anterior view of the right intra-articular disc (*) after removal of the anterior sternoclavicular capsuloligamentous structures. Note persistent anterior capsuloligamentous fibers inserted on both the disc and the first costal cartilage (small arrows)