Posted by CB on September 27, 2011 at 21:37:44:
In Reply to: Joints of the Upper Limb posted by lae2 on September 27, 2011 at 17:31:51:
: True/False - September 27, 2011
: 1. The subacromial bursa intervenes inferior to the acromion and superior to the supraspinatus tendon as this tendons blends into the joint capsule. True- it is non-communicating.
: 2. Structures at risk during shoulder separation include the acromioclavicular, trapezoid, and conoid ligaments. True- shoulder separation occurs at the acromioclavicular joint.
3. The far lateral margin of the subacromial bursa is called the subdeltoid bursa. True? Based on Hollingshead depiction.
: 4. A tear in the supraspinatus tendon may open a communication between the subacromial bursa and synovial joint cavity of the glenohumeral joint. True- then inject dye into here- if it goes to the joint, you have torn the tendon.
: 5. An articular disc divides the sternoclavicular joint into two synovial cavities. True- completely separate.
: 6. In general, an articular disc increases range of mobility (but not always).True- as in the case of the sternoclavicular joint.
: 7. The sternoclavicular joint provides the only bony link between the scapula and the skeleton. False. Between the scapula and AXIAL skeleton? True.
: 8. The costoclavicular ligament assists stability of the acromioclavicular ligament. False- sternoclavicular joint.
: 9. The subscapularis muscle inserts on the medial lip of the crest of the greater tubercle. False- inserts into lesser tubercle.
: 10. The supraspinatus tendon of insertion creates a specialization of the internal joint capsule. External joint capsule-False. Tendon of biceps does the internal joint capsule.
: 11. The infraspinatus muscle inserts intermediately between the supraspinatus, superiorly, and the teres major, inferiorly. False- teres minor inserts inferiorly on the greater tubercle.
: 12. The teres minor muscle inserts on the medial lip of the intertubercular sulcus immediately superior to the teres major. False- it inserts into the greater tubercle on the inferior aspect.
: 13. The subscapularis bursa communicates with the synovial joint capsule of the glenohumeral joint. True.
: 14. The glenoid labrum, at the infraglenoid tubercle, blends with the tendon of the long head of the biceps. False- at supraglenoid tubercle, it blends with head of biceps brachii, long head?
: 15. The long head of the biceps is intracapsular and extrasynovial at the glenohumeral joint. Intrasynvoial- lined in synovial sheath under cover of the transverse humeral ligament.
: 16. The long head of the biceps aids in approximating the head of the humerus to the glenoid fossa. True?
: 17. The glenohumeral joint capsule attaches to the margins of the surgical neck of the humerus. False- anatomic neck- extends inferior medially onto the shaft.
: 18. The intertubercular tendinous sheath is continuous with the synovium of the glenohumeral joint- true.
: 19. The glenohumeral joint capsule is relatively lax at the inferior margin and this dislocation vulnerable to forced abduction. True.
: 20. The anterior glenohumeral joint capsule is strengthened by the glenohumeral ligaments. True.
: 21. The trochlear of the humerus articulates with the head of the radius.False
: 22. The olecranon fossa of the humerus receives the olecranon of the ulna on maximum flexion. False- coranoid fossa recieves coranoid process
: 23. The ulnar notch of the proximal radioulnar joint receives the radial head. False- radial notch of the ulna receives the radial head.
: 24. The annular ligament stabilizes the head of the radius without ever attaching to the radius. False. Wraps around the whole head of radius.
: 25. The radial tuberosity faces anterior when in anatomical position (supination of the forearm). True- biceps inserts on anterior surface.
: 26. The medial (ulnar) collateral ligament of the elbow has three named bands. True- anterior, posterior, inferior
: 27. The radial collateral attaches to the ulna and to the annular ligament. False- lateral epicondyle of humerus
: 28. The distal radiolulnar joint allows the radius to pivot medially on the ulnar during pronation. True- and anteriorly.
: 29. The MP and IP joints are all hinge joints. True- synovial hinge with collateral ligaments.
: 30. The central slip of the extensor hood extends distal to the lateral bands to insert on the base of the distal phalanx. False- central slip extends to middle phalanx.
: 31. A lateral view of the extensor hood can be verified by the presence of two tendons blending with the region of the lateral cord. True- the lumbricals arise from the lateral aspect, and each digit has an interosseous muscle on the lateral aspect.
: 32. In the case that two tendons are blending on the same side of the extensor hood that the view is lateral, then the distal tendon is a lumbrical. True.
: 33. All MP and IP joints have collateral ligaments. True- two in fact.
: 34. The deep transverse metacarpal ligament is at the level of the metacarpophalangeal joint. True? although anterior to the axis of rotation?
: 35. The vinculae are mesotendons that transport synovial fluid to the distal tendon. False- they transport neurovascular supply to the tendons of the flexor tendon sheaths.