What is also known as the "shoulder complex"?

The term "shoulder complex" refers to the interconnected anatomy that enables a wide range of motion in the shoulder region. The correct choice identifies the glenohumeral joint, acromioclavicular joint, and sternoclavicular joint as components of the shoulder complex.

The glenohumeral joint is the main joint of the shoulder, where the humerus fits into the shallow socket of the scapula, allowing for multidimensional movement. The acromioclavicular joint connects the acromion of the scapula with the clavicle, playing a critical role in the stability and movement of the shoulder girdle. Finally, the sternoclavicular joint links the clavicle to the sternum, serving as the only connection between the arm and the trunk of the body. Together, these three joints contribute to the overall functionality and mobility of the shoulder complex.

Other options mention aspects related to the shoulder but do not encompass the full interaction necessary to define the shoulder complex adequately. For instance, the shoulder and elbow joints include only two joints, overlooking important contributions from the clavicle and scapula. The rotator cuff muscles, while crucial for shoulder stability and movement, are not skeletal joints and thus do not define the complex