Front | Back |
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![]() Name: Supraspinatus Origin: supraspinous fossa of scapulaInsertion: superior aspect of greater tubercle of humerusAction: helps deltoid abduct arm at shoulder |
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![]() Name: InfraspinatusOrigin: infraspinous fossa of scapulaInsertion: middle part of greater tubercle of humerusAction: laterally rotates arm at shoulder |
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![]() Name: Teres minor Origin: lateral border of scapulaInsertion: inferior aspect of greater tubercle of humerusAction: laterally rotates and weakly adducts arm at shoulder. |
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![]() Name: SubscapularisOrigin: subscapular fossa of scapulaInsertion: lesser tubercle of humerusAction: medially rotates arm at shoulder |
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![]() Name: Teres majorOrigin: inferior angle of scapulaInsertion: intertubercular groove of anterior humerusAction: adducts, medially rotates, and extends arm at shoulder |
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![]() Name: DeltoidOrigin: acromion process and spine of scapulaInsertion: Deltoid tuberosity of humerusAction: flexes & medially rotates, abducts arm at shoulder. |
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![]() Name: Coracobrachialis Origin: Coracoid process of scapulaInsertion: medial surface of humerusAction: flexes and adducts arm at shoulder |
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![]() Name: Pectoralis majorOrigin: medial half of clavicle and sternumInsertion: intertubercular groove of humerusAction: clavicular head: flexes arm at shoulder; sternal head: extends arm at shoulder;both heads: medially rotate and adduct arm at shoulder. |
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![]() Name: Biceps brachiiOrigin: long head: glenoid tubercle of scapulashort head: coracoid process of scapulaInsertion: radial tuberosity of radiusAction: flexes arm at shoulder, flex & supinate forearm at elbow |
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![]() Name: BrachialisOrigin: anterior distal half of humerusInsertion: coronoid process and ular tuberosity of ulnaAction: flexes forearm at elbow |