Upper Extremity Muscle's O, I, A, N
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Levator Scapula | Transverse processes of first four cervical vertebrae | Vertebral border of scapula between the superior angle and spine | show | Scapular elevation and downwards rotation
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Rhomboid | Spinous processes of C7 through T5 | Vertebral border of scapula between the spine and inferior angle | Dorsal scapular (C5) | show 🗑
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Serratus Anterior | Lateral Surface of the upper eight ribs | Vertebral border of the scapula, anterior surface | show | Scapular protraction and upward rotation
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Pectoralis Minor | show | Coracoid process of the scapula | Medial pectoral (C8,T1) | Scapular depression, protraction, downward rotation and tilt
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Anterior Deltoid | Lateral third of the clavicle | Deltoid tuberosity | Axillary (C5,C6) | show 🗑
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Middle Deltoid | show | Deltoid tuberosity | Axillary (C5,C6) | Shoulder abduction
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Posterior Deltoid | show | Deltoid tuberosity | Axillary (C5,C6) | Shouler abduction, extension, hyperextension, lateral rotation, horizontal abduction
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Supraspinatus | Suprasinous fossa of the scapula | show | Suprascapular (C5,C6) | Shoulder abduction
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Pectoralis Major- Clavicular portion | Medial third of clavicle | Lateral lip of bicipital groove of humerus | show | Shoulder flexion- first 60 degrees, adduction, medial rotation, and horozontal adduction
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Pectoralis Major- Sternal portion | Sternum, costal cartilage of first six ribs | show | Lateral and medial pectoral(C5,C6,C7,C8,T1) | Shoulder extension- 180 to 120 degrees, adduction, medial rotation, and horozontal adduction
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Latissimus Dorsi | show | Medial lip of bicipital groove of humerus | Thoracodorsal (C6,C7,C8) | Shoulder extension, adduction, medial rotation, hyperextension
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show | Axillary border of Scapular near the inferior angle | Crest below lesser tubercle next to the latissimus dorsi muscle attachment | Subscapular (C5,C6) | Shoulder extension, adduction and medial rotation
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Infraspinatus | Infraspinous fossa of scapula | Greater tubercle of humerus | Suprascapular (C5,C6) | show 🗑
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Teres Minor | Axillary border of scapula | Greater tubercle of humerus | show | Shoulder lateral rotation, horizontal abduction
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Subscapularis | Subscapular fossa of the scapula | show | Subscapular (C5,C6) | Shoulder medial rotation
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Coracobrachialis | Coracoid process of the scapula | show | Musculocutaneous (C6,C7) | Stabilizes the shoulder join
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Brachialis | Distal half of humerus, anterior surface | Coronoid process and ulnar tuberosity of the ulna | Musculocutaneous (C6,C7) | show 🗑
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show | Long head-Supraglenoid tubercle of scapula. Short head- coracoid process of scapula | Radial tuberosity | Musculocutaneous (C6,C7) | Elbow flexion, Forearm supination
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Brachioradialis | Lateral supracondylar ridge on the humerus | Styloid process of the radius | Radial (C5,C6) | show 🗑
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Triceps | show | Olecranon process of ulna | Radial (C7,C8) | Elbow extension
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Pronator Teres | Medial epicondyle of humerus and coronoid process of ulna | Lateral aspect of radius at its midpoint | show | Forearm pronation, assistive in elbow flexion
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show | Distal one-fourth of ulna | Distal one-fourth of radius | Median (C8,T1) | Forearm pronation
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Supinator | Lateral epicondyle of humerus and adjacent ulna | Anterior surface of the proximal radius | show | Forearm supination
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Flexor Carpi Ulnaris | Medial epicondyle of Humerus | Pisiform and base of fifth metacarpal | show | Wrist flexion, Ulnar deviation
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Flexor Carpi Radialis | Medial epicondyle of the humerus | show | Median (C6,C7) | Wrist flexion, Radial deviation
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Palmaris Longus | show | Palmar fascia | Median (C6,C7) | Assistive in wrist flexion
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Extensor Carpi Radialis Longus | Supracondylar ridge of humerus | Base of second metacarpal | Radial (C6,C7) | show 🗑
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Extensor Carpi Radialis Brevis | Lateral epicondyle of humerus | Base of third metacarpal | show | Wrist extension
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Extensor Carpi Ulnaris | show | Base of fifth metacarpal | Radial (C6,C7,C8) | Wrist extension, Ulnar deviation
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Flexor Digitorum Superficialis | Common flexor tendon, coronoid process and radius | Sides of the middle phalanx of the four fingers | show | Flexes the MCP and PIP joints of the fingers
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Flexor Digitorum Profundus | Upper three-fourths of the ulna | Distal phalanx of the four fingers | show | Fleces all three joints of the fingers
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Extensor Digitorum | Lateral epicondyle of the humerus | Base of distal phalanx of the second thur fifth fingers | show | Extends all three joints of the fingers
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Extensor Indicis | Disatl ulna | Base of distal phalanx of the second finger | show | Extends all three joints of the second finger
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show | Lateral epicondyle of humerus | Base of distal phalanx of fifth finger | Radial (C6,C7,C8) | Extends all three joints of fifth finger
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Flexor Pollicis | Radius, anterior surface | Distal phalanx of thumb | Median (C8,T1) | show 🗑
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Abductor Pollicis Longus | Posterior radius, interosseous membrane, middle ulna | Base of the first metacarpal | show | Abducts thumb
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Extensor Pollicis Brevis | Posterior distal radius | Base of the proximal phalanx of thumb | Radial (C6,C7) | show 🗑
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Extensor Pollicis Longus | Middle posterior ulna and interosseous membrane | Base of distal phalanx of thumb | show | Extends all three joints of the thumb
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Flexor Pollicis Brevis | Trapezium and flexor retinaculum | Proximal phalanx | Median (C6,C7) | show 🗑
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Abductor Pollicis Brevis | Scaphoid, trapezium and flexor retinaculum | Proximal phalanx | Medial (C6,C7) | show 🗑
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show | Trapezium and flexor retinaculum | First metacarpal | Median (C6,C7) | Opposes the thumb
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show | Capitate, base of the second metacarpal, palmar surface of the third metacarpal | Base of proximal phalanx of thumb | Ulnar (C8,T1) | Adducts thumb
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Flexor Digiti Minimi | show | Base of proximal phalanx of the fifth finger | Ulnar (C8,T1) | Flexes CMC and MCP joints of the fifth finger
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Abductor Digiti Minimi | Pisiform and tendon of flexor carpi ulnaris | Proximal phalanx of the fifth finger | Ulnar (C8,T1) | show 🗑
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Opponens Digiti Minimi | Hamate and flexor retinaculum | Fifth metacarpal | show | Opposes the fifth finger
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Dorsal Interossei | Adjacent metacarpals | show | Ulnar (C8,T1) | Abduct fingers at MCP joint
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Palmar Interossei | Respective metacarpal | Base of respective proximal phalanx | show | Adduct fingers at MCP joint
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Lumbrical | Tendon of the flexor digitorum profundus muscle | Tendon of the extensor digitorum muscle | First and Second lumbricales: Medial. Third and fourth lumbricales: Ulnar (C6,C7,C8) | show 🗑
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Upper Trapezius | show | Outer third of clavicle, Acromion process | CNXI, C3 & C4(S) | Scapular elevation and upward rotation
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Middle Trapezius | Spinous processes of C7 Through T3 | Scapular spine | CNXI, C3 & C4(S) | show 🗑
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Lower Trapezius | Spinous process of middle and lower thoracic vertebrae | Base of scapular spine | show | Scapular depression and upper rotation
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Created by:
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