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Rhomboid Major Action: adduct scapula (scapulothoracic Joint) elevate the scapula (STJ) Downwardly rotate scapula (STJ) http://o.quizlet.com/i/iyCw4P95Hb42EZfqd9iPYA.jpg Masseter Elevates mandible Assists in protracting the Mandible http://o.quizlet.com/i/HCLHaoi0bkPipyON43YQGA.jpg Sternocleidomastiod (SCM) Actions include neck flexion Lateral Flexion s/s rotate head o/s assist in inhalation http://o.quizlet.com/i/HXTADL5NWR0WSW4_M9KjFw.jpg Temporalis elevate Mandible retract Mandible http://o.quizlet.com/i/omNLGYq_PSyGl5WRyq9YDg.jpg Occipitalis (occipitofrontalis) anchor and retract galea aponeurotica http://o.quizlet.com/i/Kgg0L2haA-SO6OiEKJwMNQ.jpg Frontalis (occipitofrontalis) raise the eyebrows wrinkle forehead http://o.quizlet.com/i/6bTClCON8O42gu9ULvpMJg.jpg Platysma depress Mandible tighten fascia of neck draw down corner of mouth http://o.quizlet.com/i/2whcOoYeUo8YKbKp0P1p0g.jpg Rhomboid Minor adduct the scapula (STJ) elevate scapula scapula http://o.quizlet.com/i/VejUql1O-ZnDmGf2YpbPsA.jpg Teres Minor lateral rotate the shoulder (G/H ) adduct the shoulder stabilize the Humerus in Glenoid cavity http://o.quizlet.com/i/WmWGf3JIgxB5E_FbMpy7_w.jpg Supraspinatus abduct the shoulder (G/H) stablize head of Humerus in Glenoid Cavity http://o.quizlet.com/i/IQNzlY0vp7P_tg4zCr47qQ.jpg Levator Scapula Unilaterally: elevate scapula downwardly rotate scapula laterally flex head and neck Bilaterally: extend head and neck rotate head and neck s/s http://o.quizlet.com/i/hfAT-Tx4WY-861i7Ybc97A.jpg Latissimus Dorsi extend shoulder (G/H) adduct G/H medially rotate G/H http://o.quizlet.com/i/d1ApnxaNtAhHcAjTLzqPmQ.jpg Serratus Anterior abduct the scapula upwardly rotate scapula depress scapula hold medial border of the scapula against rib cage http://o.quizlet.com/i/sXIXrYmxP33EO5H5opZGNg.jpg Pectoralis Major ALL FIBERS: adduct shoulder Medial rotation assist elevation during inhalation UPPER FIBERS: flex shoulder horizon adduction LOWER FIBERS: extend shoulders http://o.quizlet.com/i/CkZtYJ8wPyffexWrSOrZYw.jpg Teres Major adduct shoulder G/H extend G/H Medially rotate G/H http://o.quizlet.com/i/A3pjUXsSrvv3B5eVK7Xu5A.jpg Infraspinatus laterally rotate shoulder (G/H) adduct G/H stablize the head of Humerus in Glenoid Cavity http://o.quizlet.com/i/kakx0jjD5wOWctyZ4dG4lQ.jpg Trapezius Unilaterally: extend head and neck lateral flexion of head and neck s/s rotate head and neck o/s elevate scapula upwardly rotate http://o.quizlet.com/i/si66SsDLTy0JdXmet6XHJA.jpg Subscapularis medially rotate the shoulder (G/HJ) stablize the head of Humerus in Glenoid cavity http://o.quizlet.com/i/tyOulGDeh1-yyfD1Xzcabw.jpg Deltoid ALL FIBERS: abduct shoulder (G/H) ANTERIOR FIBERS: Flex G/H medially rotate G/H horizontally adduct G/H POSTERIOR FIBERS: extend G/H laterally rotate G/H horizontally abduct http://o.quizlet.com/i/4487XzIkPK2LtOvmKgcUrg.jpg