| A | B |
|---|
| Rhomboids | Spinous process C7, T1-T5, supraspinous ligament, inferior aspect of ligamentum nuchae |
| Trapezius (upper) | spinous process C7, occiput, ligamentum nuchae |
| Trapezius (middle) | Spinous process T1-T5, supraspinous ligament |
| Trapezius (lower) | Spinous process T6-T12, supraspinous ligament |
| Subclavius | superior aspect of 1st rib |
| Levator Scapulae | Transverse process C1-C4 |
| Serratus Anterior | Anterolateral aspect of ribs 1-8 |
| Pectoralis Minor | anteromedial aspect of ribs 3, 4, and 5 |
| Supraspinatus | Medial 2/3 of supraspinous fossa |
| Infraspinatus | Medial 2/3 of infraspinous fossa |
| Teres Minor | Proximal 2/3 axillary border of scapula |
| Subscapularis | Medial 2/3 subscapular fossa |
| Deltoid (anterior) | Lat. 1/3 anterior superior clavicle |
| Deltoid (medial) | Lateral margin of acromion |
| Deltoid (posterior) | Lateral 2/3 posterior, inferior spine of scapula |
| Teres Major | Distal 1/3 Axillary border of scapula and inferior angle |
| Coracobrachialis | Coracoid process |
| Latissimus dorsi | S-processes T7-T12, lumbar vert., sacrum; lower 4 ribs; thoracolumbar fascia |
| Pectoralis Major (sternal) | Lat. 1/3 ant. sternum and costal cartilages |
| Pectoralis Major (clavicular) | Medial 1/2 ant. aspect of clavicle |
| Biceps Brachii | Short: Coracoid process Long: supraglenoid tubercle |
| Brachialis Brachii | Distal 1/2 anterior aspect of humerus |
| Triceps Brachii | Long head: Infraglenoid tubercle; Lateral head: Prox. 2/3 posterolateral humerus; Medial head: Distal 1/3 posteromedial humerus |
