Shoulder

Question 1

Name the ligaments of the shoulder and their function in shoulder stability.

Answer 1

Glenohumeral ligaments (three bands) - prevents anterior dislocation.

Coracohumeral ligament - prevents superior displacement.

Coracoacromial ligament - prevents superior displacement.

Question 2

What are the articulating surfaces in the shoulder joint?

Answer 2

Glenohumeral - shallow glenoid cavity of scapula

Scapulothoracic

Acromioclavicular

Sternoclavicular

Question 3

What structures stabilize the shoulder joint?

Answer 3

Rotator cuff muscles - (name them)

Glenohumeral ligaments

Coracoacromial ligament

Coracohumeral ligament

Fibrocartilagenous glenoid labrum

(bold + 2 to pass)

Question 4

What muscles are responsible for abduction and adduction of the shoulder joint?

Answer 4

Abduction: Deltoid, Supraspinatus

Adduction: Latissimus dorsi, Pec major, Teres major

(2 to pass)