unit 2 Upper limbs origin

Latissimus dorsi

Thoracic and lumbar vertebra, thoracolumbar fascia, ileum, ribs, and scapula

Pectoralis major

Clavicular head: clavicle; Sternocostal head: sternum, costal cartilages, aponeurosis of external oblique

Pectoralis minor

3rd–5th ribs

Subclavius

1st rib and its costal cartilage

Serratus anterior

1st–8th ribs

Deltoid

Clavicle; Scapula

Supraspinatus

Supraspinous fossa of scapula

Infraspinatus

Infraspinous fossa of scapula

Teres minor

scapula

Teres major

scapula

Subscapularis

Subscapular fossa of scapula

Biceps brachii

Short head: Coracoid process of scapula; Long head: supraglenoid tubercle of scapula

Coracobrachialis

Scapula

Brachialis

Humerus

Triceps brachii

Long head: Scapula; Lateral head: Humerus; Medial head: Humerus

Anconeus

Humerus

Pronator teres

Humerus

Flexor carpi radialis (FCR)

Humerus

Palmaris longus

humerus

Flexor carpi ulnaris (FCU)

Humerus and ulna

Flexor digitorum superficialis (FDS)

Humerus and ulna

Flexor digitorum profundus (FDP)

Ulna and interosseous membrane

Flexor pollicis longus

Radius and interosseous membrane

Pronator quadratus

Ulna

Brachioradialis

humerus

Extensor carpi radialis longus (ECRL)

humerus

Extensor carpi radialis brevis (ECRB)

humerus

Extensor digitorum

humerus

Extensor digiti minimi (EDM)

humerus

Extensor carpi ulnaris (ECU)

humerus

Supinator

Humerus; radial collateral and annular ligaments

Extensor indicis

Ulna and interosseous membrane

Abductor pollicis longus (APL)

Ulna, radius, and interosseous membrane

Extensor pollicis longus (EPL)

Ulna and interosseous membrane

Extensor pollicis brevis (EPB)

Radius and interosseous membrane

Abductor pollicis brevis

Flexor retinaculum and scaphoid and trapezium

Flexor pollicis brevis

Flexor retinaculum and scaphoid and trapezium

Opponens pollicis

Flexor retinaculum and scaphoid and trapezium

Adductor pollicis

2nd and 3rd metacarpals, capitate

Abductor digiti minimi

Pisiform

Flexor digiti minimi brevis

Hook of hamate and flexor retinaculum

Opponens digiti minimi

Hook of hamate and flexor retinaculum

Lumbricals 1 and 2

Tendons of flexor digitorum profundus

Lumbricals 3 and 4

Tendons of flexor digitorum profundus

Dorsal interossei (1–4)

Adjacent sides of two metacarpals

Palmar interossei (1–3)

Palmar surfaces of 2nd, 4th, and 5th metacarpals