Shoulders

What is the function of glenoid labrum

• Deepens glenoid fossa

• Limits accessory movements

• Attachment for long head of biceps at superior edge

• Increase congruency of the glenohumeral joint

• Reduce impact on shoulder

What is glenohumeral ligament functions?

• Thickening of capsule

• Limits anterior accessory movement in external rotation

• Limits anterior movement in internal rotation

• IGHL anterior in a stop sign position

What is the purpose of the capsule folds in the glenohumeral joint?

• Smooth movement

• Increase ROM

• Prevent tear

• Cushion

What are the contractile structures that limit excessive movement?

• Rotator cuff muscles

• Dynamic ligament

• Glenoid labrum

• Ligaments

What is the action of deltoid?

• Abduction

• Adduction

• Flexion at glenohumeral joint

• Extension at glenohumeral joint

What muscles resist downward dislocation ?

• Bicep brachii

• Deltoid

• Tricep brachii

• Coracobrachialis

• Pectoralis

What is the sequence of the rotator cuff from anterior to posterior

• Subscapularis, supraspinatus, infraspinatus, teres minor

• Supraspinatus, subscapularis, infraspinatus, teres minor

• Teres major, infraspinatus, supraspinatus, subscapularis

• Subscapularis, supraspinatus, infraspinatus, teres major

Does coracohumeral ligament resist weight of arm and keeps ball in socket

• True

• False

Function of transverse humeral ligament

• Holds synovial sheath around bicep in place

• Prevents bowstring of biceps tendons

• Keeps ball in socket

• Resist weight of arm

What is the action of supraspinatus

• Initiates and assists abduction in glenohumeral joint

• Initiates and assists adduction in glenohumeral joint

• Initiates and assists flexion in glenohumeral joint

• Initiates and assists extension in glenohumeral joint