Joints of the Shoulder Girdle and Scapular Joint Actions

Question 1

Joint where the sternum meets the proximal end of the clavicle.

Answer 1

Sternoclavicular joint

Question 2

Joint where the acromion of the scapula meets the distal end of the clavicle.

Answer 2

Acromioclavicular joint

Question 3

The scapula move away from the mid-line of the body and follow the curvature of the rib cage in lateral and anterior fashion.

Answer 3

Protraction

Question 4

The scapula move toward the mid-line of the body and follow the curvature of the rib cage in a medial and posterior fashion.

Answer 4

Retraction

Question 5

The scapula move in a superior direction.

Answer 5

Elevation

Question 6

The scapula move in an inferior direction.

Answer 6

Depression

Question 7

The inferior angle of the scapula moves in a superior-lateral direction such that the glenoid fossa faces upward.

Answer 7

Upward Rotation

Question 8

The inferior angle of the scapula moves in an inferior-medial direction such that the glenoid fossa faces downward.

Answer 8

Downward Rotation

Question 9

The superior portion of the scapula pivots anteriorly on the thorax

Answer 9

Anterior Tipping

Question 10

The superior portion of the scapula pivots posteriorly on the thorax

Answer 10

Posterior Tipping