Angular Movement of Shoulder Joint
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  • Photo title: Angular Movement of Shoulder Joint
  • Author: 7activestudio
  • Cover photo description:
  • Shoulder joint is attached to axial skeleton via the clavicle at SC joint • Scapula movement usually occurs with movement of humerus – Humeral flexion & abduction require scapula elevation, rotation upward, & abduction – Humeral adduction & extension results in scapula depression, rotation downward, & adduction – Scapula abduction occurs with humeral internal rotation & horizontal adduction – Scapula adduction occurs with humeral external rotation & horizontal abduction • Wide range of motion of the shoulder joint in many different planes requires a significant amount of laxity • Common to have instability problems – Rotator cuff impingement – Subluxations & dislocations • The price of mobility is reduced stability • The more mobile a joint is, the less stable it is & the more stable it is, the less mobile • Scapula, clavicle, & humerus serve as attachments for shoulder joint muscles – Scapular landmarks • supraspinatus fossa • infraspinatus fossa • subscapular fossa • spine of the scapula • glenoid cavity • coracoid process • acromion process • inferior angle Scapula, clavicle, & humerus serve as attachments for shoulder joint muscles – Humeral landmarks • Head • Greater tubercle • Lesser tubercle • Intertubercular groove • Deltoid tuberosity Key bony landmarks – Acromion process – Glenoid fossa – Lateral border – Inferior angle – Medial border – Superior angle – Spine of the scapula
  • Image ID:50061433
  • Views:594
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