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13 Cards in this Set
- Front
- Back
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What is the step-off deformity? What joint does it refer to?
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AC separation
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Classify the glenohumeral joint.
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Ball and socket multi-axial synovial diarthrotic joint
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What joint permits the greatest range of motion of any joint in the body? and what is special about it other than tha?
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Most unstable and most frequently dislocated.
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When will a disloaction of the glenohumeral joint happen?
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When a fully abducted humerus is struck hard.
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What is the sequence of events for what happens in the dislocation of glenohumeral joint?
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Head dislocates anteriorly and inferiorly.
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What is the glenoid labrum made up of?
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Fibrocartilage.
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What deepens the glenoid cavity and helps to stablaize the head of the humerus in the glenohumeral joint?
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Glenoid labrum.
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What protects the glenohumeral joint superiorly?
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An arch formed by the coracoid and acromion processes of the scapula, and the clavicle.
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What is most of the gleonohumeral's joint strength due to?
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Rotator cuff
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What muscles make up the rotator cuff?
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SITS muscles: Suprspinatus, infraspinatus, teres minor, and supscapularis.
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The tendons of the sits muscles encircle the joint except for what part, and what is a result of this?
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Inferior portion, area is weak and most likely site of injury.
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What are the several major ligaments of the shoulder that strengthen the joint only minimally?
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Coracohumeral ligament, glenohumeral, and transverse humeral ligament.
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What is the most likely site of injury for the glenohumeral joint?
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inferior portion of the joint because it lacks rotator cuff muscles.
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