| A | B |
|---|
| Brachialis | Distal 1/2 of anterior surface of humerus |
| Brachioradialis, Ext. Carpi Rad. Longus & Brevis | Lateral supracondylar ridge of humerus |
| Ext. Carpi Ulnaris, Ext. Digitorum | Common extensor tendon |
| Flexor Carpi Radialis, Palmaris Longus | Common flexor tendon |
| Flexor Carpi Ulnaris | Common flexor tendon AND post. surface of proximal 1/2 of ulnar shaft |
| Flexor Digitorum Superficialis | Common flexor tendon, ulnar collateral ligament, coronoid process of ulna, shaft of radius |
| Flexor Digitorum Profundus | anterior and medial surfaces of proximal 3/4 of ulna |
| Pronator Teres | Medial epicondyle of humerus, common flexor tendon, and coronoid process of ulna |
| Pronator Quadratus | Medial, anterior surface of distal ulna |
| Supinator | Radial collateral ligament, annular ligament, and supinator crest of the ulna |
| Opponens Pollicis | Flexor retinaculum and tubercle of the trapezium |
| Adductor Pollicis | Capitate, second and third metacarpals |
| Adductor Pollicis Brevis | Flexor retinaculum, trapezium, and scaphoid tubercles |
| Flexor Pollicis Brevis | Flexor retinaculum, Trapezium, trapezoid, and capitate |
| Abductor Pollicis Longus | Posterior surface of radius and ulna, and interosseous membrane |
| Extensor Pollicis Longus | Posterior surface of ulna and interosseous membrane |
| Extensor Pollicis Brevis | Posterior surface of radius and interosseous membrane |
| Flexor Pollicis Longus | Anterior surface of radius and interosseous membrane |
