NSE 13A/B Study Guide - Final Guide: Subacromial Bursa, Shoulder Joint, Acromioclavicular Joint
6 Sep 2018
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Document Summary
Shoulder (glenohumeral) joint: joint btwn. humerus and glenoid fossa of the scapula. Rotator cuff: group of 4 muscles and tendons that support and stabilize glenohumeral joint. Subacromial bursa allows greater tubercle of humerus to move easily under acromion process of scapula during abduction of arm. Acromion process: found at very top of shoulder. Acromioclavicular joint: found btwn. acromion process and clavicle. Greater tubercle of humerus: found below and laterally from acromion process. Coracoid process: found medially from greater tubercle of humerus. Ball-and-socket: movement of arm in many axes. Inspect size and contour of joint (posteriorly and anteriorly) No redness and equal bony landmarks (i. e acromion of scapula and greater tubercle of humerus) No muscular atrophy, deformity (flattening and loss of rounded shape suggests dislocated shoulder) No swelling (best seen anteriorly and due to excess fluid) Swelling of subacromial bursa is localized under deltoid muscle and may be emphasized when the patient tries to abduct arm.
