| Muscles | Proximal Attachment | Distal Attachment |
| Flexor carpi radialis (FCR) | Medial epicondyle of humerus (common flexor origin) | Base of 2nd metacarpal |
| Palmaris Longus | Medial epicondyle of humerus (common flexor origin) | Distal half of flexor retinaculum and apex of palmar aponeurosis |
| Flexor carpi ulnaris (FCU) | Radial head: medial epicondyle of humerus (common flexor origin) Ulnar head: Olecranon and posterior border of ulna (via aponeurosis) | Pisiform, hook of hamate, 5th metacarpal |
| Extensor carpi radialis longus (ECRL) | Lateral supracondylar ridge of humerus. | Dorsal aspect of base of 2nd metacarpal |
| Extensor carpi radialis brevis (ECRB) | Lateral epicondyle of humerus (common extensor origin) | Dorsal aspect of base of 3rd metacarpal |
| Extensor carpi ulnaris (ECU) | Lateral epicondyle of humerus; posterior border of ulna via a shared aponeurosis | Dorsal aspect of base of 5th metacarpal |
| Flexor digitorum superficialis (FDS) | Humeroulnar head: Medial epicondyle of humerus, ulnar collateral ligament, and coronoid process of ulna Radial head: Superior half of anterior border of radius | Bodies of middle phalanges of medial four digits |
| Flexor digitorum profundus (FDP) | Proximal three quarters of medial and anterior surfaces of ulna and interosseous membrane | Bases of distal phalanges of medial four digits |
| Extensor digitorum communis | Lateral epicondyle of humerus (common extensor origin) | Extensor expansions of 2nd–5th digits |
| Extensor indicis | Posterior surface of distal one-third of ulna and interosseous membrane | Extensor expansion of 2nd digit |
| Extensor digiti minimi | Lateral epicondyle of humerus (common extensor origin) | Extensor expansion of 5th digit |
| Abductor pollicis longus | Posterior surface of proximal half of ulna, radius, and interosseous membrane | Base of 1st metacarpal |
| Extensor pollicis longus | Posterior surface of middle one-third of ulna and interosseous membrane | Dorsal aspect of base of distal phalanx of thumb |
| Extensor pollicis brevis | Posterior surface of distal one-third of radius and interosseous membrane | Dorsal aspect of base of ... |