KP221 Chapter Notes - Chapter 6: Subscapular Artery, Costal Cartilage, Optic Nerve
21 Feb 2017
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Finger-like slips from outer surface of upper 8 ribs. Bounded by 1st rib, clavicle, superior edge of scapula. Medial of clavicle, length of sternum, upper 6 costal cartilages and aponeurosis of ex. oblique. Crest of greater tubercle (lateral lip of intertubercular groove) Adduct and medial (inward) rotation of humerus, draws scapula anteriorly and inferiorly, flew arm and extends flexed arm. Stabilizes scapula (draws it inferiorly and anteriorly against thoracic wall) Lower 6 thoracic; all lumbar and sacral spinous processes; inferior 3-4 ribs; and posterior crest of ilium. Extend, medially rotate, adduct arm, raise body to arms (pull-ups) Adduction and medial rotation of arm, with resistance, helps lat. with extension of arm. Lesser tubercle and its crest - only thing you can see on anterior view. Medial rotation of humerus, prevents anterior dislocation of humerus head; (also part of the rotator cuff) Protracts scapula, rotates lateral angle upwards, keeps medial border close to thoracic wall,
