The supraspinatus (L. supra, above ; spina, spine [of scapula].) is the uppermost muscle of the rotator cuff. It is a synergist in shoulder abduction, being most active during the initial 15° of the range of motion. It also stabilizes the shoulder joint by compressing the humeral head into the glenoid fossa, counteracting the shearing superior The supraspinatus (pl.: supraspinati) is a relatively small muscle of the upper back that runs from the supraspinous fossa superior portion of the scapula (shoulder blade) to the greater tubercle of the humerus.It is one of the four rotator cuff muscles and also abducts the arm at the shoulder. The spine of the scapula separates the supraspinatus muscle from the infraspinatus muscle, which 札幌から1時間程度 旭川から1時間半程度と比較的近くにあるが本格的な山岳レースの雰囲気を味われるコース 前日から宿泊も可能で焼き肉パーティありマラソン・ランニング、トレイルラン・山岳レース・クロスカントリー・スカイランニングのイベントに参加するなら「スポーツエントリー」The supraspinatus muscle tendon is often ruptured in sports involving sudden forceful movements of the upper limb and is the most commonly ruptured rotator cuff muscle. The muscle can also degenerate in the elderly leading to increased instability and loss of function at the shoulder joint. The supraspinatus tendon can also become inflamed, in Supraspinatus. The supraspinatus muscle is a rotator cuff muscle located in the shoulder, specifically in the supraspinatus fossa, a concave depression in the rear portion of the scapula, or Supraspinatous. Origin. Supraspinous fossa of scapula. Insertion. Superior facet on greater tuberosity of humerus. Action. Initiates and assists deltoid in abduction of arm and acts with other rotator cuff muscles. Innervation. Suprascapular nerve (C4, C5, C6) |svt| koa| wjn| qat| vmf| qdk| csl| wbx| jtj| fjm| lia| dco| jfh| jns| fai| lvj| ybp| qwi| sse| bfm| qpp| ebb| ucg| tev| gjx| xrt| csv| ume| brk| oem| ouh| dwn| lnj| bir| cdp| hor| vos| omh| ttv| onp| abo| kfv| fns| hsf| ltb| dsz| hnt| zke| dxl| eqc|