15 Questions
Match the joints with their corresponding anatomical structures:
Sternoclavicular joint = Superior sternum (manubrium) with the medial (sternal) end of clavicle Acromioclavicular joint = Acromion process of the scapula with the lateral end of clavicle Coracoclavicular joint = Coracoid process of the scapula with the inferior surface of the clavicle Scapulothoracic joint = Muscles attached to scapula permit its motion with trunk and thorax elevation/depression, protraction/retraction, upward/downward rotation, internal/external rotation, anterior/posterior tipping
Match the joints with their primary functions:
Sternoclavicular joint = Minimal movement permitted Acromioclavicular joint = Minimal movement permitted Coracoclavicular joint = Minimal movement permitted Scapulothoracic joint = Muscles attached to scapula permit its motion with trunk and thorax elevation/depression, protraction/retraction, upward/downward rotation, internal/external rotation, anterior/posterior tipping
Match the joints with their locations:
Sternoclavicular joint = Between superior sternum (manubrium) and medial (sternal) end of clavicle Acromioclavicular joint = Between acromion process of the scapula and lateral end of clavicle Coracoclavicular joint = Between coracoid process of the scapula and inferior surface of the clavicle Scapulothoracic joint = Not a true anatomical joint but permits various motions between scapula and thorax
Match the joints with their characteristic movements:
Sternoclavicular joint = No specific characteristic movement described Acromioclavicular joint = No specific characteristic movement described Coracoclavicular joint = No specific characteristic movement described Scapulothoracic joint = Allows for trunk and thorax elevation/depression, protraction/retraction, upward/downward rotation, internal/external rotation, anterior/posterior tipping
Match the joints with their stability characteristics:
Sternoclavicular joint = Stable due to strong ligaments connecting sternum and clavicle Acromioclavicular joint = Moderate stability due to ligaments connecting acromion process and clavicle Coracoclavicular joint = Moderate stability due to ligaments connecting coracoid process and clavicle Scapulothoracic joint = No true anatomical joint but contributes to overall stability of shoulder girdle
Which joint allows for the most range of motion in the body?
Glenohumeral joint
Which joint has minimal movement permitted?
Sternoclavicular joint
Which muscles attached to the scapula permit its various motions?
Rotator cuff muscles
In which joint do tendons form a collagenous cuff around the joint?
Glenohumeral joint
Which joint has poor stability due to the head having greater surface area than the fossa?
Glenohumeral joint
What type of movement is permitted by the acromioclavicular joint?
Upward and downward rotation
Which joint has poor stability due to the shallow fossa compared to the head size?
Glenohumeral joint
What is the main function of the scapulothoracic joint?
Protraction and retraction
Which joints form a collar-like cuff around the joint using tendons?
Glenohumeral joint
What type of movement is permitted by the sternoclavicular joint?
Anterior and posterior tipping
Test your knowledge on the different joints and movements of the shoulder complex, including the sternoclavicular joint, acromioclavicular joint, coracoclavicular joint, and scapulothoracic joint.
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