Contents
Anatomy pictures
Referred pain pattern
Symptoms
- Numbness, paraesthesia (tingling) of 4th and 5th fingers activated by abduction/elevation and retraction of shoulder
Videos
Short version
Detailed version
MyoFascial lines
Deep dorsal arm line
- Levator scapula
- Rhomboideus
- Supraspinatus, Infraspinatus, Subscapularis and Teres Minor
- Triceps brachii
- Ulnar periosteum
- Ulnar collateral ligaments
- Hypothenar muscles
Synergists
Lateral rotation shoulder
- Posterior Deltoideus
- Infraspinatus
Antagonists
Medial rotation
- Anterior Deltoideus
- Pectoralis Major
- Latissimus Dorsi
- Teres Major
- Subscapularis
ANATOMY
Position
- Superficial
Origin
- Superior part of margo lateralis scapulae
Insertion
- Tuberculum majus humerus (inferior facet)
Main function
- Shoulder
- Lateral rotation
Secondary function
- Shoulder
- Adduction
Nerve innervation
- Segmental
- C5-C6
- Peripheral
- Nervus axillaris
Arterial supply
- Cricumflex scapular artery
- Posterior circumflex humeral artery