Shoulder Complex Quiz

How many joints make up the shoulder complex?

• 2

• 3

• 4

• 5

Which joint is referred to as a "functional joint" in the shoulder complex?

• Sternoclavicular joint

• Glenohumeral joint

• Acromioclavicular joint

• Scapulothoracic joint

What is the primary function of the shoulder complex?

• Stability

• Mobility

• Load-bearing

• Weight distribution

What structure prevents inferior translation of the humeral head?

• Inferior glenohumeral ligament

• Superior capsule and coracohumeral ligament

• Acromioclavicular ligament

• Subscapularis muscle

Which muscle offsets the superior translatory force of the deltoid?

• Trapezius

• Biceps Brachii

• Infraspinatus and Teres Minor

• Pectoralis Major

The force couple between the deltoid and rotator cuff results in what type of movement?

• Linear motion

• Perfect rotation of the humeral head

• Upward translation of the humerus

• Downward movement of the scapula

What is the normal range of motion for shoulder flexion?

• 90°

• 100° to 120°

• 150° to 180°

• 200°

What is the scapulohumeral rhythm ratio during arm elevation?

• 1:1

• 2:1

• 3:1

• 4:1

Which axis is shoulder flexion and extension performed around?

• Sagittal

• Coronal

• Longitudinal

• Transverse

What is the primary function of the Coracobrachialis?

• Shoulder abduction

• Shoulder extension

• Shoulder flexion and adduction

• Shoulder external rotation