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Upper Extremity Muscle's O, I, A, N

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Muscle
Origin
Insertion
Nerve
Activity
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: RLPTA
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