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supraspinatus O: supraspinous fossa I: greater tubercle of the humerus A: abduct the shoulder http://o.quizlet.com/i/STUbVBOW6xqRMEip5OTrcQ.jpg infraspinatus O: infraspinous fossa of the scapula I: greater tubercle of the humerus A: adduct the shoulder lateral rotation of shoulder horizontal abduct the humerus http://o.quizlet.com/i/41B_ki4IAoTPSozNZNQPGQ.jpg teres minor O: superior half of lateral border of scapula I: greater tubercle of the humerus A: adduct the shoulder lateral rotation of shoulder horizontal abduct the humerus http://o.quizlet.com/i/GfhhCFSt963zoEIEU2Geiw.jpg subscapularis O: subscapular fossa of the scapula I: lesser tubercle of the humerus A: medially rotate the shoulder http://o.quizlet.com/i/0-i7boA6RpWHvHLTsUKAFw.jpg trapezius O: external occipital protuberance, medial portion of superior nuchal line of occiput, ligamentum nuchae, spinous processes of C7-T12 I: lateral one-third of clavicle, acromion, and spine of scapula A: upper fibers: -bilaterally: extend head and neck -unilaterally: elevate scapulothoracic joint (s/t joint) middle fibers: adduct scapula lower fibers: depress scapula http://o.quizlet.com/i/CxRmMCkoI8wXZtDINcKqRQ.jpg latissimus dorsi "hand-cuff muscle" O: spinous process of T7-T12, ribs 9~12, thoracolumbar aponeurosis, posterior illiac crest I: crest of lesser tubercle of the humerus A: medially rotate the shoulder at glenohumeral joint (g/h joint) ALSO: extend and adduct shoulder at g/h joint http://o.quizlet.com/i/aTYhOHv3Rn6tELMkvP0NlA.jpg teres major "latissimus dorsi's little helper" O: lateral inferior angle and inferior half of lateral border of scapula I: crest of lesser tubercle of the humerus A: medially rotate the shoulder at glenohumeral joint (g/h joint) ALSO: extend and adduct shoulder at g/h joint http://o.quizlet.com/i/zun37AZnrsZKG_J7MID00Q.jpg rhomboids O: C7-T5 I: medial border of scapula from spine to inferior angle A: adduct scapula at scapulothoracic joint (s/t joint) elevate scapula at s/t joint downwardly rotate scapula at s/t joint http://o.quizlet.com/i/967819MrlCWEFd-mzdfJuw.jpg rhomboid minor "A" O: C7-T1 I: superior medial border of scapula across from spine of scapula A: adduct scapula at scapulothoracic joint (s/t joint) elevate scapula at s/t joint downwardly rotate scapula at s/t joint http://o.quizlet.com/i/967819MrlCWEFd-mzdfJuw.jpg rhomboid major "B" O: T2-T5 I: medial border of scapula between spine and inferior angle A: adduct scapula at scapulothoracic joint (s/t joint) elevate scapula at s/t joint downwardly rotate scapula at s/t joint http://o.quizlet.com/i/967819MrlCWEFd-mzdfJuw.jpg levator scapula O: tranverse processes of C1-C4 (TP's of C1-C4) I: upper region of medial border and superior angle of scapula A: bilaterally: extend head and neck unilaterally: elevate scapula at s/t joint downwardly rotate scapula at s/t joint laterally flex head and neck rotate to same side http://o.quizlet.com/i/ebEZGHc-ygHNLHSg34Hi9g.jpg serratus anterior "super-hero muscle" O: surfaces of upper 8 or 9 ribs I: anterior surface of medial border of the scapula A: fixed origin: -*abduct scapula (s/t joint) -depress scapula (s/t joint) -hold medial border of scapula against rib cage fixed insertion(scapula): -may act in forced inhalation http://o.quizlet.com/i/7cQMkynBwJGMxv7PakRS_w.jpg erector spinae I Love Spaghetti (lateral to most medial) O: thoracolumbar aponeurosis A: extends back, keeps us standing upright NOTE: a three part band of muscles that keeps us upright http://o.quizlet.com/i/HpmQQesi_Vf4NnrRw0nFuQ.jpg spinalis "A" "Spaghetti" smallest and most medial of the erector spinae http://o.quizlet.com/i/HpmQQesi_Vf4NnrRw0nFuQ.jpg longissimus "B" "Love" middle muscle of erector spinae http://o.quizlet.com/i/HpmQQesi_Vf4NnrRw0nFuQ.jpg iliocostalis "C" "I" most lateral of erector spinae http://o.quizlet.com/i/HpmQQesi_Vf4NnrRw0nFuQ.jpg quadratus lumborum "Hip Hiker" O: posterior illiac crest I: last rib and transverse processes (TP's) of L1-L4 A: unilaterally: -laterally tilt pelvis (same side) -laterally flex vertebral column (same side) -assist extension of vertebral column bilaterally: -fix the last rib during inhalation and forced exhalation http://o.quizlet.com/i/4Zv3lvsDGbfIgKp-eF_USg.jpg thoracolumbar aponeurosis common origin of erector spinae and latissimus dorsi at the sacrum and illium rotator cuff (SITS) supraspinatus infraspinatus teres minor subscapularis Posterior Scapula Bony Landmarks 1. Spine 2. Acromion (Process) 3. Medial (vertebral) border 4. Inferior Angle 5. Superior Angle 6. Lateral Border 7. Suprespinous Fossa 8. Infraspinous Fossa http://o.quizlet.com/i/xsS4R8ENvMYprrfKJfB9ZA.jpg Anterior Scapula Bony Landmarks 1. Glenoid Fossa (cavity) 2. Subscapular Fossa 3. Coracoid Process 4. Supreglenoid Tubercle 5. Infraglenoid Tubercle http://o.quizlet.com/i/EiqY05e-3J0xkfHg7-dOQA.jpg