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Chest and arm

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Question
Answer
O. of Pectoralis Major   Clavicular head: medial half of clavicle. Sternal head: sternum, carilages of upper 6 ribs.  
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I. of Pectoralis Major   Lateral lip of bicipital groove of humerus  
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A. of Pectoralis Major   Adduction, horizontal adduction and medial rotation of humberus. Clavicular head: flexion of humerus. Sternal Head: extension of humerus from a flexed position  
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N. of Pectoralis Major   Clavicular Head: lateral pectoral n. Sternal Head: medial pectoral n.  
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O. of Pectoralis Minor   Anterior surface of ribs 3,4,5 near costal cartilage  
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I. of Pectoralis Minor   Coracoid Process of scapula on medial border of superior surface  
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A. of Pectoralis Minor   Protraction, depression, downward rotation of the scapula  
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N. of Pectoralis Minor   Medial Pectoral n.  
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O. of Subclavius   1st rib costocartilage junction  
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I. of Subclavius   Inferior shaft of clavicle- middle 1/3  
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A. of Subclavius   Stabilizes clavicle by moving it medially  
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N. of Subclavius   Nerve to Subclavius  
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O. of Serratus Anterior   Outer surface of upper 8 ribs (by finger-like slips)  
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I. of Serratus Anterior   Vertebral border of the scapula- anterior surface  
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A. of Serratus Anterior   Protraction, upward rotation of scapula, stabilizes scapula against chest wall  
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N. of Serratus Anterior   Long Thoracic n.  
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O. of Coracobrachialis   Coracoid process of scapula  
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I. of Coracobrachialis   Middle 1/3 of medial surface of humeral shaft  
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A. of Coracobrachialis   Flexion, adduction of humerus  
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N. of Coracobrachialis   Musculocutaneous n.  
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O. of Deltoids   Anterior: lateral third of clavicle. Middle: lateral acromion. Posterior: spine of scapula  
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I. of Deltoids   Deltoid tuberosity of humerus  
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A. of Deltoids   Anterior: flexion, horizontal adduction, medial rotation of humerus. Middle: abduction of humerus to 90 degrees. Posterior: extension, horizontal abduction, lateral rotation of humerus.  
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N. of Deltoids   Axillary n.  
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O. of Triceps Brachii   Long Head: Infraglenoid tubercle of scapula. Lateral Head: Posterior humerus above the spiral groove. Medial head: posterior humerus below the spiral groove.  
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I. of Triceps Brachii   Olecranon process of ulna  
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A. of Triceps Brachii   Extension of elbow. Long Head: extension of humerus  
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N. of Triceps Brachii   Radial n.  
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O. of Anconeus   Lateral epicondyle of humerus  
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I. of Anconeus   Olecranon process and upper posterior surface of ulna  
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A. of Anconeus   Assists extension of elbow  
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N. of Anconeus   Radial n.  
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O. of Brachialis   Lower half of anterior shaft of humerus  
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I. of Brachialis   Tuberosity of ulna, Coronoid process of ulna.  
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A. of Brachialis   Flexion of elbow  
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N. of Brachialis   Musculocutaneous n. (sometimes branches of radial and median nn.)  
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O. of Biceps Brachii   Short head: coracoid process of scapula. Long head: Supraglenoid tubercle of scapula  
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I. of Biceps Brachii   Tuberosity of radius, bicipital aponeurosis  
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A. of Biceps Brachii   Flexion of elbow, supination of forearm. Short head: flexion of humerus  
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