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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   C3, C4, dorsal scapular (C5)   show
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Rhomboid   show Vertebral border of scapula between the spine and inferior angle   Dorsal scapular (C5)   Scapular retraction, elevation, and downward rotation  
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show Lateral Surface of the upper eight ribs   Vertebral border of the scapula, anterior surface   Long thoracic (C5,C6,C7)   Scapular protraction and upward rotation  
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Pectoralis Minor   Anterior surface, third through fith rib   Coracoid process of the scapula   Medial pectoral (C8,T1)   show
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Anterior Deltoid   Lateral third of the clavicle   Deltoid tuberosity   Axillary (C5,C6)   show
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Middle Deltoid   Acromion process   show Axillary (C5,C6)   Shoulder abduction  
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show Spine of scapula   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   Lateral lip of bicipital groove of humerus   Lateral and medial pectoral(C5,C6,C7,C8,T1)   show
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Latissimus Dorsi   Spinous processes of T7 through L5 (fascia), posterior surface of sacrum, iliac crest and lower three ribs   Medial lip of bicipital groove of humerus   show 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   show Greater tubercle of humerus   Suprascapular (C5,C6)   Shoulder lateral rotation, Horizontal abduction  
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Teres Minor   Axillary border of scapula   Greater tubercle of humerus   Axillary (C5,C6)   show
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Subscapularis   Subscapular fossa of the scapula   Lesser tubercle of the humerus   show Shoulder medial rotation  
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Coracobrachialis   Coracoid process of the scapula   medial surface of the humerus near midpoint   Musculocutaneous (C6,C7)   show
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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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Biceps Brachii   Long head-Supraglenoid tubercle of scapula. Short head- coracoid process of scapula   show 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   Long head- Infraglenoid tubercle of scapula. Lateral head- Inferior to greater tubercle on posterior humerus. Medial head- Posterior surface of humerus.   Olecranon process of ulna   Radial (C7,C8)   show
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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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show Medial epicondyle of the humerus   Base of second and third metacarpals   Median (C6,C7)   Wrist flexion, Radial deviation  
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show Medial epicondyle of humerus   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   Radial (C6,C7)   show
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Extensor Carpi Ulnaris   Lateral epicondyle of humerus   Base of fifth metacarpal   Radial (C6,C7,C8)   show
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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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show Upper three-fourths of the ulna   Distal phalanx of the four fingers   Median and Ulna (C8,T1)   Fleces all three joints of the fingers  
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show Lateral epicondyle of the humerus   Base of distal phalanx of the second thur fifth fingers   Radial (C6,C7,C8)   Extends all three joints of the fingers  
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show Disatl ulna   Base of distal phalanx of the second finger   Radial (C6,C7,C8)   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   show Flexes all three joints of the thumb  
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show Posterior radius, interosseous membrane, middle ulna   Base of the first metacarpal   Radial   Abducts thumb  
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Extensor Pollicis Brevis   Posterior distal radius   show Radial (C6,C7)   Extends CMC and MCP joints of thumb  
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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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show Trapezium and flexor retinaculum   Proximal phalanx   Median (C6,C7)   Flexes the CMC and MCP joints of the thumb  
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Abductor Pollicis Brevis   Scaphoid, trapezium and flexor retinaculum   show Medial (C6,C7)   Abducts the thumb  
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Opponens Pollicis   Trapezium and flexor retinaculum   show Median (C6,C7)   Opposes the thumb  
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Adductor Pollicis   Capitate, base of the second metacarpal, palmar surface of the third metacarpal   Base of proximal phalanx of thumb   show Adducts thumb  
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Flexor Digiti Minimi   Hamate and Flexor retinaculum   Base of proximal phalanx of the fifth finger   Ulnar (C8,T1)   show
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Abductor Digiti Minimi   show Proximal phalanx of the fifth finger   Ulnar (C8,T1)   Abducts the MCP joint of the fifth finger  
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Opponens Digiti Minimi   Hamate and flexor retinaculum   Fifth metacarpal   Ulnar (C8,T1)   show
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Dorsal Interossei   Adjacent metacarpals   Base of proximal phalanx   Ulnar (C8,T1)   show
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Palmar Interossei   Respective metacarpal   Base of respective proximal phalanx   Ulnar (C8,T1)   show
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Lumbrical   Tendon of the flexor digitorum profundus muscle   Tendon of the extensor digitorum muscle   show Flex the MCP joint while extending the PIP and DIP joints  
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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   show CNXI, C3 & C4(S)   Scapular retraction  
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Lower Trapezius   show Base of scapular spine   CNXI, C3 & C4(S)   Scapular depression and upper rotation  
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