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Shoulder Girdle Musc
OIA
Question | Answer |
---|---|
Pectoralis Minor | Anterior O: anterior surface of ribs 4-5 I: coracoid process A: downward rotation and Protraction. |
Serratus Anterior | Posterior, but anterior to the scapula O: ribs 1-9 at mid section I: anterior medial border of scpula A: scapular protraction, upward rotation. |
Upper Trapezius | Posterior O: base of skull, occiput I: posterior lateral 1/3 clavicle A: elevation. |
Middle Trapezius | Posterior O: spinous process of 7th cervical and 1-3 thoracic vertebra I: medial acromion process scapular spine A: elevation, upward rotation, retraction. |
Lower Trapezius | Posterior O: spinous process of 4-12 thoracic vertebra I: inferior medial scapular spine A: upward rotation, depression. |
Rhomboids | Posterior O: spinous process of C7-T5 I: Medial border of scapula A: retraction, downward rotation. |
Levator Scapulae | Posterior O: Transverse process of C1-C4 I: medial border of scapula A: elevation (levator). |