| Term 
 | Definition 
 
        | A  unilaterally elevate & upwardly rotate scapula, rotate & flex head & neck to same side; bilaterally extend head & neck O  transverse processes of C1-c-4 I  medial border of scapula between spine & superior angle N  dorsal scapular |  | 
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        | Term 
 | Definition 
 
        | A upper fibers: bilaterally extend head & neck
 unilaterally flex head & neck to same side, rotate head & neck to opposite side, elevate & upwardly rotate scapula
 middle fibers:
 adduct & stabilize scapula
 lower fibers: depress & upwardly rotate scapula
 O external occipital protuberance, medial portion superior nuchal line, ligamentum nuchae, & spinous processes C7-T12
 I lateral 1/3clavicle, acromion & spine of scapula
 N accessory (cranial nerve XI), ventral rami C2, 3, 4
 |  | 
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        | Term 
 | Definition 
 
        | A  adduct, elevate & downwardly rotate scapula O  spinous processes C7-T1 I medial border of scapula across from spine of scapula N  dorsal scapular |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  adduct, elevate & downwardly rotate scapula O  spinous processes T2-T5 I  medial border of scapula between spine & inferior  angle N  dorsal scapular |  | 
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        | Term 
 | Definition 
 
        | A abduct, upwardly rotate & depress scapula, hold medial border of scapula against ribcage, with scapula fixed may elevate thorax with forced inhalation O external surfaces upper 8-9 ribs
 I anterior surface medial border of scapula
 N long thoracic, C5,6,7,8
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A anterior fibers abduct, flex, IR, horizontally adduct shoulder middle fibers abduct shoulder
 posterior fibers abduct, extend, ER, horizontally abduct shoulder
 O lateral 1/3 clavicle, acromion, spine of scapula
 I deltoid tuberosity
 N axillary
 |  | 
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        | Term 
 | Definition 
 
        | A abduct & stabiliza shoulder O supraspinous fossa of scapula
 I greater tubercle of humerus
 N suprascapular
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A ER, adduct, stabilize humerus in glenoid cavity O infraspinous fossa of scapula
 I greater tubercle of humerus
 N suprascapular
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A ER, adduct, stabilize head of humerus in glenoid cavity O superior 2/3 lateral border of scapula
 N axillary
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A IR, stabilize humerus in glenoid cavity O subscapular fossa
 I lesser tubercle of humerus
 N upper & lower subscapular
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  extend, adduct & internally rotate shoulder O  inferior angle of scapula, spinous processes of T6-T12, last 3-4 ribs, thoracolumbar aponeurosis, & posterior iliac crest I  intertuburcular groove of humerus N  thoracodorsal |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  extend, adduct & internally rotate shoulder O  lower 1/3 lateral border & inferior angle of scapula I  crest of lesser turbercle of humerus N lower subscapular |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A all fibers adduct, IR shoulder, assist to elevate thorax during inhalation upper fibers flex, horizontally adduct shoulder
 lower fibers extend shoulder
 O medial half clavicle, sternum, ribs 1-6
 I crest of greater tubercle of humerus
 N upper fibers: lateral pectoral
 lower fibers: lateral & medial pectoral
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A depress, abduct (protract), downwardly rotate scapula; with scapula fixed, assist to elevate the thorax during forved inhalation O ribs 3-5
 I medial surface coracoid process of scapula
 N medial pectoral, with communicating branch of lateral pectoral, C(6), 7, 8, T1
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A all heads extend elbow long head extends & adducts shoulder
 O long head: infraglenoid tubercle of scapula
 lateral head: proximal 1/2 posterior surface of humerus
 medial head: distal 1/2 posterior surface of humerus
 I olecranon process
 N radial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A flex elbow, sipinate forearm, weak flexion of shoulder O long head: supraglenoid tubercle of scapula
 short head : coracoid process of scapula
 I bicipital aponeurosis & radial tuberosity
 N musculocutaneous
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A flex & adduct shoulder O coracoid process of scapula
 I medial surface of mod-humerus
 N musculocutaneous
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  flex elbow O  distal half anterior humerus
 I tuberosity & coronoid process of ulna
 N  musculotcutaneous
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A flex elbow, assist with resisted supination & pronation of forearm O proximal 2/3 lateral supracondylar ridge of humerus
 I radial styloid
 N radial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  pronate the forearm, assist to flex the elbow O  common flexor tendon of the medial epicondyle of the humerus & coronoid process of the ulna I  middle of lateral surface of radius N  median |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A flex & radial debiate wrist, ,ay assist to flex elbow O common flexor tendon frommedial epicondyle of humerus
 I bases of 2nd &3rd metacarpals
 N median
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  flex wrist, may assist to flex elbow, tense palmar fascia O  common flexor tendon of the medial epicondyle of the humerus
 I  flexor retinaculum & palmar aponeurosis
 N  median
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A flex & ulnar deviate wrist, assist to flex elbow O humeral head: common flexor tendon of medial epicondyle
 ulnar head: posterior surface of proximal 2/3 ulna
 I pisiform, hook of hamate & base of 5th metacarpal
 N ulnar
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  extend the elbow O  lateral epicondyle of humerus
 I  olecranon process & posterior, proximal surface of ulna
 N  radial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A extend & ulnar deviate wrist O common extensor tendon from lateral epicondyle of humerus
 I base of 5th metacarpal
 N radial
 |  | 
        |  | 
        
        | Term 
 
        | extensor carpi radialis longus |  | Definition 
 
        | A extend & radial deviate wrist, assist to flex elbow O distal 1/3 lateral supracondylar ridge of humerus
 I base of 2nd metacarpal
 N radial
 |  | 
        |  | 
        
        | Term 
 
        | extensor carpi radialis brevis |  | Definition 
 
        | A extend & radial deviate wrist, assist to flex elbow O common extensor twndon of lateral epicondyle of humerus
 I base of 3rd metacarpal
 N radial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  extend MCP, PIP & DIP of digits 2-5, assist to extend wrist O  common extensor tendon of lateral epicondyle of humerus I  middle & distal phalanges of digits 2-5 N radial |  | 
        |  | 
        
        | Term 
 
        | flexor digitorum superficialis |  | Definition 
 
        | A  flex PIP of digits 2-5 O  common flexor tendon of the medial epicondyle of the humerus, ulnar collateral ligament, proximal shaft of radius, coronoid process of ulna, & interosseous membrane I  sides of middle phalanges of fingers 2-5 N median   |  | 
        |  | 
        
        | Term 
 
        | flexor digitorum profundus |  | Definition 
 
        | A  flex MIP & DIP of digits 2-5 O  anterior & medial surfaces of proximal 3/4 of ulna I  base of distal phalanges of digits 2-5 N  1st & 2nd: median  3rd & 4th: ulnar |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  supinate forearm O  lateral epicondyle of the humerus, annular ligament, radial collateral ligament, & supinator crest of the ulna I  anterior, lateral surface of proximal 1/3 of radius N  radial |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  pronate the forearm O  medial, anterior surface of distal ulna I  lateral, anterior surface of distal radius N  median |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  flex knee, plantar flex ankle O  condyles of the femur, posterior surfaces
 I  calcaneus via calcaneal tendon
 N  tibial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  flex knee, IR flexed knee O  lateral condyle of femur
 I  proximal, posterior aspect tibia
 N  tibial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  weak knee plantar flexion & knee flexion O  lateral supracondylar line of femur
 I  calcaneus via calcaneal tendon
 N  tibial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  plantar flex O  soleal line, proximal/posterior tibia, posterior aspect head of fibula
 I  calcaneus via calcaneal tendon
 N  tibia
 |  | 
        |  | 
        
        | Term 
 
        | extensor digitorum longus |  | Definition 
 
        | A  extend toes 2-5, dorsiflex, evert ankle O  lateral condyle of tibia, proximal/anterior shaft of fibula, interosseous membrane
 I  middle & distal phalanges of toes 2-5
 N  peroneal
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  invert, dorsiflex O  lateral condyle of tibia, proximal/lateral tibia, interosseous membrane
 I  medial cuneiform, base of 1st metatarsal
 N  deep peroneal
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  extend hallux, dorsiflex, invert O  middle anterior surface of fibula, interosseous membrane
 I  distal phalange of hallux
 N  deep peroneal
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  evert, assists plantar flexion O  head of fibula, proximal 2/3 lateral fibula
 I  base of 1st metatarsal, medial cuneiform
 N  superficial peroneal
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  evert, assist to plantar flex O  distal 2/3 lateral fibula
 I  tuberosity of 5th metacarpal
 N  superficial peroneal
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  flex toes 2-5, weak plantarflexion, invert O  middle posterior surface of tibia
 I  distal phalanges toes 2-5
 N  tibial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  flex hallux, weak plantar flexion, invert O  middle half of posterior fibula
 I  distal phalange of hallux
 N  tibial
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A  invert, plantar flex O  proximal/posterior shafts of tibia & fibula, interosseous membrane
 I  navicular, cuneiforms, cuboid, bases of metatarsals 2-4
 |  | 
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