Muscle of upper limb: origin, insertion, action and innervation

55 muscles of this region (Muscle of upper limb) with their origin, insertion, action, nerve and artery. Press a name to see it on the 3D model.

Muscle	Origin	Insertion	Action	Innervation	Arterial supply
abductor digiti minimi of hand Musculus abductor digiti minimi manus	pisiform flexor retinaculum of wrist	proximal phalanx of little finger	abduction of the fingers	deep branch of ulnar nerve
abductor pollicis brevis Musculus abductor pollicis brevis	tubercle of scaphoid flexor retinaculum of wrist	proximal phalanx of thumb	abduction of the thumb	nerve to abductor pollicis brevis	superficial palmar arterial arch
abductor pollicis longus Musculus abductor pollicis longus	posterior surface of radius posterior surface of ulna interosseous membrane of forearm	first metacarpal bone	abduction of the thumb	nerve to abductor pollicis longus
anconeus Musculus anconeus	lateral epicondyle of the humerus	olecranon posterior surface of ulna	extension of the elbow joint	branch of posterior muscular branch of radial nerve to medial head of triceps brachii	deep brachial artery
brachialis Musculus brachialis	anterolateral surface of humerus anteromedial surface of humerus lateral intermuscular septum of arm medial intermuscular septum of arm anterior margin of humerus	Tuberosity of the ulna	flexion of the elbow joint	musculocutaneous nerve radial nerve	brachial artery superior ulnar collateral artery radial recurrent artery
brachioradialis Musculus brachioradialis	lateral margin of humerus lateral intermuscular septum of arm	Radial styloid process	flexion of the elbow joint supination of the forearm pronation of the forearm	nerve to brachioradialis	radial recurrent artery
coracobrachialis Musculus coracobrachialis	coracoid process	anteromedial surface of humerus	flexion of the arm at the shoulder joint adduction of the arm at the shoulder joint	musculocutaneous nerve	anterior circumflex humeral artery brachial artery
deep head of flexor pollicis brevis Caput profundum flexoris brevis pollicis	trapezoid capitate			deep branch of ulnar nerve
dorsal interossei muscles of hand Musculi interossei dorsales manus	metacarpal bone	proximal phalanx of index finger proximal phalanx of middle finger proximal phalanx of ring finger	abduction of the fingers	deep branch of ulnar nerve
extensor carpi radialis brevis Musculus extensor carpi radialis brevis	lateral epicondyle of the humerus radial collateral ligament	third metacarpal bone	extension of the wrist joint abduction at the wrist joint	nerve to extensor carpi radialis brevis
extensor carpi radialis longus Musculus extensor carpi radialis longus	humerus lateral intermuscular septum of arm	second metacarpal bone	extension of the wrist joint abduction at the wrist joint	nerve to extensor carpi radialis longus
extensor carpi ulnaris Musculus extensor carpi ulnaris	lateral epicondyle of the humerus posterior border of diaphysis of ulna	fifth metacarpal bone	extension of the wrist joint adduction at the wrist joint	nerve to extensor carpi ulnaris
extensor digiti minimi Musculus extensor digiti minimi	lateral epicondyle of the humerus	middle phalanx of little finger distal phalanx of little finger	extension of the wrist joint extension of the fingers	nerve to extensor digiti minimi
extensor digitorum Musculus extensor digitorum	lateral epicondyle of the humerus	middle phalanx of index finger middle phalanx of middle finger middle phalanx of ring finger middle phalanx of little finger distal phalanx of index finger distal phalanx of middle finger distal phalanx of ring finger distal phalanx of little finger	extension of the wrist joint extension of the fingers	nerve to extensor digitorum
extensor indicis Musculus extensor indicis	posterior surface of ulna interosseous membrane of forearm	middle phalanx of index finger distal phalanx of index finger	extension of the wrist joint	nerve to extensor indicis
extensor pollicis brevis Musculus extensor pollicis brevis	posterior surface of ulna posterior surface of radius interosseous membrane of forearm	proximal phalanx of thumb	extension of the wrist joint extension of the thumb abduction of the thumb	nerve to extensor pollicis brevis
extensor pollicis longus Musculus extensor pollicis longus	posterior surface of ulna interosseous membrane of forearm	distal phalanx of thumb	extension of the wrist joint extension of the thumb	nerve to extensor pollicis longus
flexor carpi radialis Musculus flexor carpi radialis	medial epicondyle of the humerus antebrachial fascia	second metacarpal bone third metacarpal bone trapezium	flexion of the wrist joint abduction at the wrist joint	nerve to flexor carpi radialis
flexor digiti minimi brevis of hand Musculus flexor digiti minimi brevis manus			flexion of the fingers	deep branch of ulnar nerve
flexor digitorum profundus Musculus flexor digitorum profundus	anterior surface of ulna medial surface of ulna interosseous membrane of forearm coronoid process of the ulna interosseous border of diaphysis of radius	distal phalanx of index finger distal phalanx of middle finger distal phalanx of ring finger distal phalanx of little finger	flexion of the wrist joint flexion of the fingers	anterior interosseous nerve of forearm branch of ulnar nerve to flexor digitorum profundus
flexor digitorum superficialis Musculus flexor digitorum superficialis	medial epicondyle of the humerus coronoid process of the ulna anterior border of diaphysis of radius	middle phalanx of index finger middle phalanx of middle finger middle phalanx of ring finger middle phalanx of little finger	flexion of the wrist joint flexion of the fingers	median nerve
flexor pollicis brevis Musculus flexor pollicis brevis	trapezoid capitate tubercle of trapezium flexor retinaculum of wrist	proximal phalanx of thumb	flexion of the thumb	deep branch of ulnar nerve nerve to superficial head of flexor pollicis brevis
flexor pollicis longus Musculus flexor pollicis longus	anterior surface of radius interosseous membrane of forearm	distal phalanx of thumb	flexion of the thumb	median nerve anterior interosseous nerve of forearm
humeral head of extensor carpi ulnaris Caput humerale extensoris ulnaris carpi	lateral epicondyle of the humerus
humeral head of flexor carpi ulnaris	medial epicondyle of the humerus
humero-ulnar head of flexor digitorum superficialis Caput humeroulnare flexoris superficialis digitorum	medial epicondyle of the humerus coronoid process of the ulna
infraspinatus Musculus infraspinatus	Infraspinatous fossa	greater tubercle	lateral rotation of the arm at the shoulder joint abduction of the arm at the shoulder joint	suprascapular nerve	circumflex scapular artery
lateral head of triceps brachii	posterior surface of humerus
levator scapulae Musculus levator scapulae			medial rotation of the pectoral girdle lateral flexion of the neck extension of the neck	dorsal scapular nerve Anterior ramus of third cervical nerve Anterior ramus of fourth cervical nerve
long head of biceps brachii caput longum biceps brachii	supraglenoid tubercle glenoid labrum		flexion of the arm at the shoulder joint
long head of triceps brachii	Infraglenoid tubercle glenoid labrum		extension of the arm via the shoulder joint
lumbrical muscles of hand Musculi lumbricales manus			flexion of the fingers extension of the fingers	median nerve ulnar nerve	superficial palmar arterial arch deep palmar arterial arch common palmar digital arteries dorsal digital arteries of hand
medial head of triceps brachii	posterior surface of humerus medial intermuscular septum of arm lateral intermuscular septum of arm			branch of posterior muscular branch of radial nerve to medial head of triceps brachii
oblique head of adductor pollicis	trapezoid capitate
opponens digiti minimi of hand Musculus opponens digiti minimi manus	hamulus of hamate bone flexor retinaculum of wrist pisohamate ligament	fifth metacarpal bone	Opposition of the fingers	deep branch of ulnar nerve
opponens pollicis Musculus opponens pollicis	tubercle of trapezium flexor retinaculum of wrist	first metacarpal bone	opposition of the thumb	branch of median nerve to opponens pollicis
palmar interossei muscles Musculi interossei palmares	first metacarpal bone second metacarpal bone fourth metacarpal bone fifth metacarpal bone trapezium	proximal phalanx of thumb proximal phalanx of index finger proximal phalanx of ring finger proximal phalanx of little finger	adduction of the fingers	deep branch of ulnar nerve	palmar metacarpal arteries
palmaris longus Musculus palmaris longus	medial epicondyle of the humerus antebrachial fascia	flexor retinaculum of wrist palmar aponeurosis	flexion of the wrist joint	median nerve
pectoralis minor Musculus pectoralis minor	third rib fourth rib fifth rib	coracoid process	medial rotation of the pectoral girdle protraction of the pectoral girdle	medial pectoral nerve	thoraco-acromial artery superior thoracic artery
pronator quadratus Musculus pronator quadratus	anterior surface of ulna anterior border of diaphysis of ulna	anterior surface of radius anterior border of diaphysis of radius	pronation of the forearm	nerve to pronator quadratus
radial head of flexor digitorum superficialis Caput radiale flexoris superficialis digitorum	anterior border of diaphysis of radius
rhomboid major musculus rhomboideus major			retraction of the pectoral girdle medial rotation of the pectoral girdle	dorsal scapular nerve
rhomboid minor Musculus rhomboideus minor			retraction of the pectoral girdle medial rotation of the pectoral girdle	dorsal scapular nerve
serratus anterior Musculus serratus anterior	first rib second rib third rib fourth rib fifth rib sixth rib seventh rib eighth rib ninth rib	medial border proper of scapula	lateral rotation of the pectoral girdle protraction of the pectoral girdle	long thoracic nerve	lateral thoracic artery thoracodorsal artery superior thoracic artery
short head of biceps brachii caput breve biceps brachii	coracoid process
subclavius Musculus subclavius	first rib	clavicle	stabilization of the clavicle	subclavian nerve	thoraco-acromial artery
subscapularis Musculus subscapularis	subscapular fossa	lesser tubercle	adduction of the arm at the shoulder joint medial rotation of the arm at the shoulder joint	inferior subscapular nerve superior subscapular nerve	circumflex scapular artery
superficial head of flexor pollicis brevis	tubercle of trapezium flexor retinaculum of wrist			nerve to superficial head of flexor pollicis brevis
supinator Musculus supinator	lateral epicondyle of the humerus radial collateral ligament supinator crest	anterior border of diaphysis of radius neck of radius	supination of the forearm stabilisation	deep branch of radial nerve	radial recurrent artery
supraspinatus Musculus supraspinatus	Supraspinatous fossa	greater tubercle	abduction of the arm at the shoulder joint	suprascapular nerve
teres major Musculus teres major	inferior angle of the scapula	intertubercular sulcus of the humerus	extension of the arm via the shoulder joint adduction of the arm at the shoulder joint medial rotation of the arm at the shoulder joint	inferior subscapular nerve	posterior circumflex humeral artery
teres minor Musculus teres minor	Infraspinatous fossa Infraspinous fascia	greater tubercle	lateral rotation of the arm at the shoulder joint adduction of the arm at the shoulder joint	axillary nerve nerve to teres minor	posterior circumflex humeral artery
transverse head of adductor pollicis	second metacarpal bone third metacarpal bone
ulnar head of extensor carpi ulnaris Caput ulnare extensoris ulnaris carpi	posterior border of diaphysis of ulna
ulnar head of flexor carpi ulnaris	olecranon coronoid process of the ulna posterior border of diaphysis of ulna