11-ShoulderMuscles_W010

11-ShoulderMuscles_W010 - Click to edit Master subtitle...

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Unformatted text preview: Click to edit Master subtitle style Movesci 230 Human Musculoskeletal Anatomy Muscles & Movements: Shoulder Shoulder Girdle Motions Sternoclavicular joint Elevation/depression Protraction/retraction Scapulothoracic joint Elevation/depression Protraction/retraction Up/downward rotation Glenohumeral Joint Motions Flexion/extension Flexors- anterior Extensors- posterior Abduction/adduction Abductors- superior Adductors- inferior Medial/lateral rotation Medial rotators- medial Lateral rotators- lateral Approach to the Shoulder Anterior muscles Pectoral region Anterior deltoid Brachial region Posterior muscles Spine-scapula Scapula-humerus Anterior Muscles Pectoral region Pectoralis major Pectoralis minor Pectoralis Major Origin Sternal head Sternum Clavicular head Medial third of clavicle Insertion Lateral lip of intertubercular groove Special features Forms anterior border of axilla Pectoralis Major Function Both heads Adduction Medial rotation Clavicular head Flexion Sternal head Extension Pectoralis Major - Both Heads Clavicular and Sternal Heads Pectoralis Major Pectoralis Minor Origin Anterior surface of ribs Insertion Coracoid process Function Protraction Depression Downward rotation Pectoralis Minor Anterior Muscles Pectoral region Pectoralis major Pectoralis minor Anterior deltoid Anterior Deltoid Origin Lateral third of clavicle Insertion Deltoid tuberosity of humerus Function Flexion Medial rotation Anterior Deltoid Anterior Muscles...
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11-ShoulderMuscles_W010 - Click to edit Master subtitle...

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