Anatomy and Functionality of Shoulder Joints and Muscles Quiz

Supraspinatus is a rotator cuff muscle responsible for shoulder abduction.

Deltoid primarily functions in the abduction of the shoulder.

Axillary nerve innervates the deltoid muscle.

Radius is not a component of the shoulder girdle.

Labrum provides a cushioning effect and contributes to joint stability in the glenohumeral joint.

Pectoralis minor muscle is located on the anterior side of the scapula.

The Glenohumeral ligament stabilizes the shoulder joint by preventing anterior dislocation.

Subscapularis is responsible for internal rotation of the shoulder.

Acromioclavicular joint allows for both abduction and adduction in the shoulder.

Supraspinatus is responsible for abduction beyond 90 degrees.

During shoulder abduction, the greater tubercle moves under the acromion.

Latissimus dorsi's primary action in the shoulder is adduction.

Axillary nerve is commonly associated with sensation in the shoulder region.

Coracoacromial arch is formed by the coracoid process and acromion.

Subscapularis plays a crucial role in stabilizing the humeral head in the glenoid cavity.

Coracohumeral ligament stabilizes the humeral head in the glenoid cavity from below.

Brachial plexus provides nerve supply to shoulder muscles from C5 to T1 nerve roots.

Subacromial bursa is located between the acromion and deltoid muscle.