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Trunk and upper extremities muscle groups

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Term
Definition
show O-one head from the coracoid process; the other from the supraglenoid tubercle, I-tuberosity of radius, A-flexion at elbow and shoulder; supination  
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Deltoid   show
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show O-xiphoid process, cartilages of ribs 4-10, and anterior surfaces of lumbar vertebrae, I-central tendinous sheet, A-contraction expands thoracic cavity, compresses abdominopelvic cavity  
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show O-inferior border of each rib, I-superior boarder of more inferior rib, A-elvate ribs  
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External Oblique   show
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show O-lumbodorsal fascia and iliac crest, I-inferior ribs, xiphoid process, and linea alba, A-compresses abdomen, depresses ribs, flexes or bends spine  
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Pectoralis Major   show
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show O-anterior-superior surfaces of ribs 2-4, 2-5, or 3-5, depending on anatomical variation, I-coracoid process of scapula, A-depresses and protracts shoulder; rotates scapula so glenoid cavity moves inferorly; elevates ribs if scapula is stationary  
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show O-superior surface of pubis around symphysis, I-inferior surfaces of costal cartilages (ribs 5-7) and xiphoid process, A- depresses ribs, flexes vertebral column, compresses abdomen  
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Rhomboid Minor   show
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Serratus Anterior   show
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Transverse Abdominis   show
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Levator Scapulae   show
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show origin-occipital bone and spinous processes of thoracic vertebrae, insertion-clavicle and scapula, action-elevate, retract, depress, or rotate scapula upward, elevate clavicle, or extend neck  
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show Origin-clavicle and scapula, Insertion: humerus, action-abduction at shoulder  
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Rhomboideus Major   show
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show origin-supraspinous fossa of scapula, insertion: greater tubercle of humerus, action-abduction at shoulder  
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Infraspinatus   show
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show origin-lateral border of scapula, insertion-greater tubercle of humerus, action-lateral rotation at shoulder  
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Teres Major   show
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Triceps Brachii   show
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show origin-spinous processes of inferior thoracic and all lumbar vertebrae, ribs 8-12, and lumbodorsal fascia, insertion-intertubercular groove of the humerus, action-extension, adduction, and medial rotation at shoulder  
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Extensor carpi radialis longus   show
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show origin-lateral epicondyle of humerus, insertion: digits 2-5, action-extends digits 2-5  
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show Origin-medial epicondyle of humerus, Insertion-Bases of second and third metacarpal bones, Actions-Flexion and abduction at wrist  
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Palmaris longus   show
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show Origin-Medial epicondyle of the humerus, Insertion-5th metacarpal, Action-Flexion and adduction at wrist  
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subscapularis   show
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show Origin-Iliolumbar ligament and iliac crest, Insertion-Inferior border of twelfth rib and transverse processes of L1-L4, Action-together they depress ribs, alone each side laterally flexes vertebral column  
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Splenius capitis   show
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Iliocostalis lumborum   show
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show Origin-transverse and costal processes of cervical vertebrae, Insertion-superior surfaces of first two ribs, Action-elevate ribs or flex neck  
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show abducts little finger  
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show flexes little finger  
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show adducts thumb  
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dorsal interossei   show
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flexor pollicis brevis   show
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lumbricals   show
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show opposition of thumb  
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show adduct fingers  
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Palmaris brevis   show
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bipennate muscle fascicles   show
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sphicnter   show
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convergent muscle fascicles   show
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show bundle of muscle fibers  
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multipennate muscle fascicles   show
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parallel fascicles   show
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show spindle-shaped muscles with parallel fibers  
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show fascicles are arranged on only one side of tendon.  
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show attaches muscle to bone  
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ligament   show
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show a type of muscle fiber arrangement in which each fiber attaches obliquely to a central tendon  
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