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35 Cards in this Set
- Front
- Back
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what is the sternoclavicular joint?
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the only bony attachment between the upper limb and axial skeleton
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acrominoclavicular joint
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the only bony attachment of the scapula to the trunk
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what are the motions of the acromioclavicular joint
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rotation of the scapula on the clavicle
anterior-posterior motion |
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what does the coracoclavicular ligament prevent?
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the lateral end of the clavicle riding up over the acromion
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what does the coracoacromial l igament prevent
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the head of the humerus from wedging in between teh acromion and coracoid process
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what type of joint is the shoulder joint?
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ball and socket
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what are the pros and cons of the ball and socket joint in the shoulder
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+ mobility
-stability |
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what does the stability of the gleonohumeral joint depend on
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the integrity of the rotator cuff muscles which hold the head of the humerus against the glenoid fossa
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what is the most commonly dislocated large joint in the body?
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the shoulder joint
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what is the function of the glenoid labrum
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it is a ring of fibrocartilage inside the glenoid fossa that increases stability
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what does the axillary pouch help allow for
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adduction of the arm
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what lines the fibrous capsule
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synovial membrane
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what does the coracoacromial l igament prevent
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the head of the humerus from wedging in between teh acromion and coracoid process
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what are the two intrinsic ligaments of the shoulder joint
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glenohumeral ligament and coracohumeral ligament
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what type of joint is the shoulder joint?
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ball and socket
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what is another name for the glenohumeral ligament
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z ligament because it has three bands
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what are the pros and cons of the ball and socket joint in the shoulder
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+ mobility
-stability |
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what does the stability of the gleonohumeral joint depend on
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the integrity of the rotator cuff muscles which hold the head of the humerus against the glenoid fossa
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what is the most commonly dislocated large joint in the body?
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the shoulder joint
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what is the function of the glenoid labrum
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it is a ring of fibrocartilage inside the glenoid fossa that increases stability
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what does the axillary pouch help allow for
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adduction of the arm
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what lines the fibrous capsule
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synovial membrane
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what are the two intrinsic ligaments of the shoulder joint
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glenohumeral ligament and coracohumeral ligament
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what is another name for the glenohumeral ligament
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z ligament because it has three bands
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what is the function of the glenohumeral liigament
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reinforces the anterior of the shoulder joint
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where does the glenohumeral ligament run
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from superior aspect of the glenoid labrum to the anatomical neck of the humerus
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what is the only way the glenohumeral ligament can be seen?
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on the inside of the capsule
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what are the extrinsic ligaments of the shoulder joint
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coracoclavicular, coracoacrominal, transverse humeral
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funciton of the coracoclavicular ligament
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suspends the scapula and attached upper limb from the clavicle
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function of the coracoacrominal ligament
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forms roof over the joint and prevents the humerus from being pushed upward when the weight of the body is supported by the upper limb
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functin of transverse ligament
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holds the tendon of the long head of the biceps brachiii muscle in the intertubercular sulcus
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what does the subscapular bursa prevent
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friction between the tendon of the subscapularis muscle and the neck of the scapula
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what two bursae of the shoulder joint are fused together
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the subdeltoid bursa and the subacromial bursa
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what is the function of the subdeltiod and subacromial bursa
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to prevent friction between the shoulder joint and the deltoid and supraspinatus muscles
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do the subdeltiod and subacromial bursae normally communicate with the joint capsule
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no
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