Anterior Forearm and hand muscle origin and insertion

Pronator Teres Origin

ulnar head: coronoid process of ulna

pronator teres origin

humeral head: medial epicondyle of humerus

Pronator Teres Insertion

lateral surface of radius

Flexor Carpi Radialis (FCR) Origin

Medial epicondyle of humerus (via common flexor tendon)

Flexor Carpi Radialis (FCR) Insertion

Base of 2nd metacarpal

Palmaris Longus Origin

Medial epicondyle of humerus (via common flexor tendon)

Flexor Carpi Ulnaris (FCU) Origin

Humeral head: medial epicondyle of humerus (via common flexor tendon)

Ulnar head: olecranon and posterior border of ulna

Flexor Carpi Ulnaris (FCU) Origin

Flexor Carpi Ulnaris (FCU) Insertion

pisiform, hook of hamate, 5th metacarpal

Flexor Digitorum Superficialis (FDS) origin

Humeroulnar head: medial epicondyle (via common flexor tendon) & coronoid process of ulna

Radial head: anterior proximal radius

Flexor Digitorum Superficialis (FDS) insertion

shafts of middle phalanges 2nd-5th digits

Flexor Digitorum Profundus (FDP) origin

Proximal medial and anterior ulna; interosseous membrane.

Flexor Digitorum Profundus (FDP) insertion

Base of distal phalanges of 2nd-5th digits

Flexor Pollicis Longus (FPL) origin

Anterior surface of radius and adjacent interosseous membrane

Flexor Pollicis Longus (FPL) insertion

Base of distal phalanx of the thumb

Pronator Quadratus origin

Distal anterior ulna

Pronator Quadratus insertion

Distal anterior radius

Abductor Pollicis Brevis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

Abductor Pollicis Brevis insertion

lateral side of base of proximal phalanx of thumb

Opponens Pollicis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

Opponens Pollicis insertion

lateral side of 1st metacarpal

Flexor Pollicis Brevis origin

Flexor retinaculum and tubercles of scaphoid and trapezium

Flexor Pollicis Brevis insertion

lateral side of base of proximal phalanx of thumb

Flexor Digiti Minimi brevis origin

hook of hamate and flexor retinaculum

Flexor Digiti Minimi brevis insertion

medial side of base of proximal phalanx of 5th digit

Abductor Digiti Minimi origin

pisiform

Abductor Digiti Minimi insertion

Medial side of base of proximal phalanx of 5th digit

Opponens Digiti Minimi origin

hook of hamate and flexor retinaculum

Opponens Digiti Minimi insertion

medial border of 5th metacarpal

Palmaris Brevis origin

palmar aponeurosis

Palmaris Brevis insertion

skin of hand on ulnar side

Adductor Pollicis origin

Oblique head: Bases of 2nd and 3rd metacarpals; trapezoid & capitate

Transverse head: Anterior surface of shaft of 3rd metacarpal

Adductor Pollicis origin

Adductor Pollicis insertion

Medial side of base of proximal phalanx of thumb

Lumbricals (1st and 2nd) origin

Lateral two tendons of flexor digitorum profundus (as unipennate muscles)

Lumbricals (1st and 2nd) insertion

Lateral sides of extensor expansions of 2nd-3rd digits

Lumbricals (3rd & 4th) origin

Medial three tendons of flexor digitorum profundus (as bipennate muscles)

Lumbricals (3rd & 4th) insertion

Lateral sides of extensor expansions of 4th-5th digits

Dorsal interossei (1st-4th) origin

Adjacent sides of two metacarpals (as bipennate muscles)

Dorsal interossei (1st-4th) insertion

Bases of proximal phalanges and extensor expansions of 2nd-4th digits

Palmar Interossei (1st-3rd) origin

Palmar surfaces of 2nd, 4th, and 5th metacarpals (as unipennate muscles)

Palmar Interossei (1st-3rd) insertion

bases of proximal phalanges; extensor expansions of 2nd, 4th, and 5th digits

Brachioradialis origin

lateral supracondylar ridge of humerus

Brachioradialis insertion

lateral surface of distal radius, proximal to styloid process

Extensor Carpi Radialis Longus (ECRL) origin

lateral supracondylar ridge of humerus

Extensor Carpi Radialis Longus (ECRL) insertion

dorsal aspect of base of 2nd metacarpal

Extensor Carpi Radialis Brevis (ECRB) origin

lateral epicondyle of humerus (via common extensor tendon)

Extensor Carpi Radialis Brevis (ECRB) insertion

dorsal aspect of base of 3rd metacarpal

Extensor Digitorum (ED) origin

lateral epicondyle of humerus (via common extensor tendon)

Extensor Digitorum (ED) insertion

extensor expansions of 2nd-5th digits

Extensor Digiti Minimi (EDM) origin

lateral epicondyle of humerus (via common extensor tendon)

Extensor Digiti Minimi (EDM) insertion

Extensor expansion of 5th digit

Extensor Carpi Ulnaris (ECU) origin

Lateral epicondyle of humerus (via common extensor tendon); posterior border of ulna

Extensor Carpi Ulnaris (ECU) insertion

dorsal aspect of base of 5th metacarpal

Supinator origin

Lateral epicondyle of humerus (via common extensor tendon); radial collateral and anular ligaments; supinator fossa; crest of ulna

Supinator insertion

Lateral, posterior, and anterior surfaces of proximal third of radius

Abductor Pollicis Longus (APL) origin

Posterior surface of proximal halves of ulna, radius, and interosseous membrane

Abductor Pollicis Longus (APL) insertion

base of 1st metacarpal

Extensor Pollicis Brevis (EPB) origin

posterior surface of distal third of radius and interosseous membrane

Extensor Pollicis Brevis (EPB) insertion

dorsal aspect of base of proximal phalanx of thumb

extensor pollicis longus (EPL) origin

Posterior surface of middle third of ulna and interosseous membrane

extensor pollicis longus (EPL) insertion

dorsal aspect of base of distal phalanx of thumb

extensor indicis origin

Posterior surface of distal third of ulna and interosseous membrane

extensor indicis insertion

extensor expansion of 2nd digit