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AIF R42

Functional Anatomy of the Shoulder: Part 1

QuestionAnswer
The shoulder complex comprises how many major joints? 4
What does SC stand for? Sternoclavicular joint
What does AC stand for? Acromioclavicular joint
Full range of motion at the GH joint is dependent on what? Movement occurring at the other 3 joints
Which joint is considered a pseudo articulation? Scapulothoracic joint
List the 5 movements that occur at the SC joint Elevation, Depression, Protraction, Retraction, Rotation
What are the primary motions of the AC joint? Upward rotation, Downward rotation
All movements that occur between the scapula and thorax are a result of? The cooperation between the SC and AC joints
What are the three posterior muscles that stabilise the ST joint? Trapezius, Rhomboids, Levator Scapulae
What type of joint is the GH joint? Multiaxial ball and socket
What is gained at the GH joint at the expense of stability? Mobility
What is the first reason the GH joint is not fully congruent? The head of the humerus articulates with the shallow glenoid fossa of the scapula
Created by: Tarz88