Shoulder Complex Quiz

How many joints are there within the shoulder complex?

• Five

• Four

• Three

• Two

Which muscle acts as a strut connecting the upper extremity to the thorax?

• Subscapularis

• Clavicle

• Teres Minor

• Supraspinatus

What is the primary purpose of the movements of the clavicle at the sternoclavicular joint?

• To place the scapula in an optimal position

• To provide stability for the shoulder complex

• To rotate around the bone's longitudinal axis

• To connect the upper extremity to the thorax

Which muscle is responsible for upward rotation of the scapula?

• Trapezius

• Pectoralis Major

• Latissimus Dorsi

• Deltoid

What is the function of the rotator cuff muscles during arm elevation?

• To provide flexibility to the shoulder complex

• To restrict the movement of the humeral head

• To compress and centralize the humeral head

• To destabilize the shoulder joint

Which muscle is a primary internal rotator of the shoulder?

• Supraspinatus

• Teres Minor

• Pectoralis Major

• Infraspinatus

What is the role of the subscapularis muscle in shoulder movement?

• External Rotation

• Abduction

• Adduction

• Internal Rotation

Which muscle group generates the largest torques for shoulder adduction and extension?

• Pectoralis Major

• Deltoid

• Teres Major

• Triceps Brachii

What is the function of the serratus anterior muscle in shoulder movement?

• Anterior Tilt of Scapula

• Posterior Tilt of Scapula

• Internal Rotation of Humerus

• Superior Dislocation of SC Joint

Which muscle is responsible for downward translational force on the humeral head during abduction?

• Supraspinatus

• Infraspinatus

• Subscapularis

• Teres Minor