Shoulder Joint Structures and Functions

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Sternoclavicular joint

Superior sternum(manubrium) with the medial (sternal) end of clavicle (correct)

Acromion process of the scapula with the lateral end of clavicle

Coracoid process of the scapula with the inferior surface of the clavicle Minimal movement permitted

Muscles attached to scapula permit its motion with trunk and thorax elevation/depression, protraction/retraction, upward/downward rotation, internal/external rotation, anterior/posterior tipping

Acromioclavicular joint

Acromion process of the scapula with the lateral end of clavicle

process of the scapula with the inferior surface of the clavicle Minimal movement permitted (correct)

Muscles attached to scapula permit its motion with trunk and thorax

Most ROM of any joint in body, poor stability - head has greater surface area than fossa,

What type of movement does the Coracoclavicular joint permit?

Minimal movement

Which joint allows the most range of motion but has poor stability?

Glenohumeral joint Signup and view all the answers

What do the rotator cuff muscles (SITS) do around the Glenohumeral joint?

Tendons form a collagenous cuff around the joint Signup and view all the answers

What type of joint allows the motion of the scapula with the trunk and thorax?

Scapulothoracic joint Signup and view all the answers

Which joint has the muscles attached to the scapula that permit its motion?

Scapulothoracic joint Signup and view all the answers

What are some preventive measures for shoulder conditions?

Protective equipment, physical conditioning, flexibility, strength, proper skill technique, throwing motion, proper falling technique Signup and view all the answers

What are the types of shoulder sprains mentioned in the text?

Sternoclavicular, Acromoclavicular, Glenohumeral Signup and view all the answers

What is the management for Glenohumeral dislocation?

Rest and immobilization, NSAIDs, range of motion exercises Signup and view all the answers

What is the mechanism of injury for a posterior Glenohumeral dislocation?

Fall or blow to the anterior surface Signup and view all the answers

What is the primary muscle involved in Rotator Cuff Strain/Impingement?

Supraspinatus Signup and view all the answers

What is the contributing factor to Rotator Cuff Impingement Syndrome?

Abutment of rotator cuff and subacromial bursa against the coracoacromial ligament and greater tubercle of the humerus Signup and view all the answers

What are the symptoms of Bursitis mentioned in the text?

Sudden shoulder pain during throwing, point tenderness on acromion process, painful arc during passive abduction Signup and view all the answers

What is the mechanism of injury for Bicipital Tendinitis?

Repetitive overhead activities involving excessive elbow flexion and supination Signup and view all the answers

What is the management approach for fractures of the Scapula?

Early rehabilitation with caution, addressing adhesions Signup and view all the answers

Why is history important in shoulder assessment?

To consider referred pain, chief complaint, and previous injuries Signup and view all the answers

What is the function of the Coracoclavicular joint?

Minimal movement permitted Signup and view all the answers

Which joint allows the scapula to move with trunk and thorax?

Scapulothoracic joint Signup and view all the answers

What is the main function of the Glenohumeral joint?

Most ROM of any joint in the body Signup and view all the answers

Which group of muscles form a collagenous cuff around the Glenohumeral joint?

Rotator cuff muscles (SITS) Signup and view all the answers

What is the main function of the Subacromial bursa?

Cushions rotator cuff muscles from acromion Signup and view all the answers

Which nerve innervates the upper extremity?

Brachial plexus Signup and view all the answers

What is the main function of the Trapezius muscle?

Elevation/depression of the scapula Signup and view all the answers

Which phase of the throwing motion involves maximum shoulder external rotation?

Cocking phase Signup and view all the answers

What is the function of the Levator scapulae muscle?

Elevation of the scapula Signup and view all the answers

Which joint is compressed during overhead arm action?

Subacromial bursa Signup and view all the answers

What is the purpose of the Apley scratch test in shoulder examination?

To assess shoulder range of motion by scratching the opposite shoulder. Signup and view all the answers

How is the Neer test used in shoulder examination?

To test for shoulder impingement. Signup and view all the answers

What is the significance of the Speed's test in shoulder evaluation?

To diagnose bicipital tendinitis. Signup and view all the answers

What is the purpose of the Drop Arm test in shoulder assessment?

To evaluate rotator cuff function. Signup and view all the answers

How is the Yergason test utilized in shoulder examination?

To detect bicipital tendinitis. Signup and view all the answers

What does the Sulcus sign indicate in shoulder evaluation?

Shoulder instability. Signup and view all the answers

Why is the Apprehension test performed during a shoulder examination?

To check for anterior shoulder instability. Signup and view all the answers

Shoulder Joint Structures and Functions

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Questions and Answers

Sternoclavicular joint

Acromioclavicular joint

What type of movement does the Coracoclavicular joint permit?

Which joint allows the most range of motion but has poor stability?

What do the rotator cuff muscles (SITS) do around the Glenohumeral joint?

What type of joint allows the motion of the scapula with the trunk and thorax?

Which joint has the muscles attached to the scapula that permit its motion?

What are some preventive measures for shoulder conditions?

What are the types of shoulder sprains mentioned in the text?

What is the management for Glenohumeral dislocation?

What is the mechanism of injury for a posterior Glenohumeral dislocation?

What is the primary muscle involved in Rotator Cuff Strain/Impingement?

What is the contributing factor to Rotator Cuff Impingement Syndrome?

What are the symptoms of Bursitis mentioned in the text?

What is the mechanism of injury for Bicipital Tendinitis?

What is the management approach for fractures of the Scapula?

Why is history important in shoulder assessment?

What is the function of the Coracoclavicular joint?

Which joint allows the scapula to move with trunk and thorax?

What is the main function of the Glenohumeral joint?

Which group of muscles form a collagenous cuff around the Glenohumeral joint?

What is the main function of the Subacromial bursa?

Which nerve innervates the upper extremity?

What is the main function of the Trapezius muscle?

Which phase of the throwing motion involves maximum shoulder external rotation?

What is the function of the Levator scapulae muscle?

Which joint is compressed during overhead arm action?

What is the purpose of the Apley scratch test in shoulder examination?

How is the Neer test used in shoulder examination?

What is the significance of the Speed's test in shoulder evaluation?

What is the purpose of the Drop Arm test in shoulder assessment?

How is the Yergason test utilized in shoulder examination?

What does the Sulcus sign indicate in shoulder evaluation?

Why is the Apprehension test performed during a shoulder examination?

What is the primary objective of the Clunk test in shoulder assessment?

How is the Empty Can test beneficial in shoulder evaluation?

What is the purpose of the Compression Rotation test in shoulder examination?

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