Pectoral region and axilla

Left sternoclavicular joint opened

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Image #91-1
Bassett ImageDiagram Image
Legend Image
Pectoral region and axilla
Left sternoclavicular joint opened
The capsule has been resected to expose the articular disc (4) which separates the medial and lateral cavities of the joint. The sternal end of the clavicle is covered with fibrocartilage. The unevenness of this surface is of common occurrence.
1 . Sternohyoid muscle
2 . Anterior jugular vein (cut off)
3 . Sternoclavicular joint capsule (pointer on interclavicular ligament which has been divided)
4 . Left pointer: Medial joint cavity Right pointer: Articular disc
5 . Manubrium of sternum
6 . Clavicle
7 . Costoclavicular ligament
8 . Tendon of origin of subclavius muscle
9 . Sternal articular surface clavicle (covered with fibrocartilage)