Shoulder Complex Quiz

Which joint is a link between the axial and appendicular skeleton?

• Sternoclavicular Joint

• Acromioclavicular Joint

• Scapulothoracic Joint

• Glenohumeral Joint

What is the function of the rotator cuff muscles?

• Compress and centralize the humeral head in the GH fossa

• Provide stability to the sternoclavicular joint

• Control the upward rotation of the scapulothoracic joint

• Generate the largest torque in shoulder adduction and extension

Which muscle is responsible for scapular protraction?

• Serratus Anterior

• Upper Trapezius

• Levator Scapulae

• Rhomboids

What is the closed packed position of the glenohumeral joint?

• Max abduction and External Rotation

• 55 degrees abduction, 30 degrees horizontal adduction, internal rotation

• ER>Abduction>IR

• Superior roll/inferior glide

What is the function of the supraspinatus muscle?

• Assist in shoulder abduction

• Assist in shoulder adduction

• Assist in shoulder flexion

• Assist in shoulder extension

Which muscle is responsible for shoulder internal rotation?

• Subscapularis

• Infraspinatus

• Teres Minor

• Supraspinatus