Bicep brachii
Origin: scapulaInsertion: radius
flexion at elbow and
shoulder;supination
Brachialis
Origin: humerusInsertion: ulna
flexion at elbow
Brachioradialis
Origin: humerusInsertion: radius
Flexion at elbow
Anconeous
Orgin: humerusInsertion: ulna Extension at elbow
Triceps brachii
Origin: humerus/scapulaInsertion: ulna
Extension at elbow
Pronator quadratus
Origin: ulnaInsertion: radius
Pronation
Pronator teres
Origin: humerus/ulnaInsertion: radius
Pronation
Supinator
Origin: humerus/ulnaInsertion: radius Supination
Flexor carpi radialis
Origin: humerusInsertion: base of 2nd, 3rd metacarpal flexion and abduction
at wrist
Flexor carpi ulnaris
Origin: humerusInsertion: pisiform, hamate, and base of 5th metacarpal flexion and adduction
at wrist
Palmaris longus
Origin: humersuInsertion: palmar aponeurosis and flexor retinaculum
flexion at
wrist
Extensor carpi radialis longus
Origin: humerusInsertion: base of 2nd metacarpal
extension and abduction at wrist
Extensor carpi radialis brevis
Origin: humerusInsertion: base of 3rd metacarpal extension and abduction at wrist
Extensor carpi ulnaris
Origin: humerus; ulnaInsertion: base of 5th metacarpal
Extension and adduction at wrist
Abductor pollicis longus
Origin: ulna and radiusInsertion: 1st metacarpal
Abduction at joints of thumb and wrist
Extensor digitorum
Origin: humerusInsertion: fingers 2-5 phalanges
Extension at finger joints and wrist
Extensor pollicis brevisExtensor pollicis longus
Origin:humerusInsertion: thumb Extension at joints of thumb; abduction at wrist
Extensor indicis
Origin: ulna and interosseous membraneInsertion: phalanges of index finger Extension and adduction at joints of index finger
Extensor digiti minimi
Origin: humerusInsertion: proximal phalanx of little finger
Extension at joints of little finger
Flexor digitorum superficialis
Origin: humerus, ulnaInsertion: middle phalanges 2-5
Flexion at proximal interphalangeal, metacarpophalngeal, and wrist joints
Flexor digitorum profundus
Origin:ulna, coronoid processInsertion: distal phalanges 2-5 Flexion at distal interphalangeal joints and, to a
lesser degree, proximal interphalnageal joints and wrist
Flexor pollicis longus
Origin: radiusInsertion: distal phalanx thumb
Flexion at joints of thumb
Adductor pollicis
Origin: metacarpal and carpal bonesInsertion: proximal phalanx of thumb
Adduction of thumb
Opponens pollicis
Origin: trapeziumInsertion: 1st metacarpal
Opposition of thumb
Palmaris brevis
Origin: palmar aponeurosisInsertion: skin of medial border of hand
moves skin on medial border toward midline of plam
Abductor digiti minimi
Origin: pisiformInsertion: proximal phalanx of little finger Abduction of little finger and flexion at its
metacarpophalngeal joint
Abductor pollicis brevis
Origin: transverse carpal ligament, scaphoid, trapeziumInsertion: proximal phalanx of thumb
Abduction of thumb
Flexor pollicis brevis
Origin: flexor retinaculum, trapezium, capitateInsertion: proximal phalanx of thumb Flexion and adduction of thumb
Flexor digiti minimi brevis
Origin: hamateInsertion: proximal phalanx of little finger
Flexion at joints of little finger
Opponens digiti minimi
Origin: hamateInsertion: 5th metacarpal
Opposition of fifth metacarpal bone
Lumbrical
Origin: flexor digitorum profundusInsertion: extensor digitorum
Flexion at metacarpophalangeal joints 2-5; extension at proximal and distal interphalangeal joints, digits 2-5
Dorsal interosseus
Origin: metacarpalsInsertion: proximal phalanges of fingers 2-4
Abductin at metacarpophalngeal joints of fingers 2 and 4; flexion at metacrpophalngeal joint; extension at interphalangeal joints
Palmar interosseus
Origin: metacarpal bones II, IV, VInsertion: proximal phalanges of fingers 2, 4, and 5 Adduction at metacrpophalangeal joints of fingers
2,4, and 5; flexion at metacarpophalangeal joints; extension at interphalangeal joints