Upper limb part 3 Flashcards
sternoclavicular joint
saddle joint between clavicular facet of manubrium and superior surface of first costal cartilage with the medial surface of the clavicle
(complex movement)
4 strong ligaments of sternoclavicular joint
-anterior/posterior sternoclavicular ligaments
-interclavicular ligament
-costoclavicular ligament
acromioclavicular joint
synovial joint between acromion and clavicle
ligaments supporting acromioclavicular joint
-acromioclavicular ligament (directly)
-coracoclavicular ligament (indirectly)
glenohumeral joint
-shoulder joint
-ball and socket
-shallow glenoid cavity slightly deepened by glenoid labrum
-loose, thin articular capsule from glenoid cavity to anatomical neck of humerus
-strong thickening: coracohumeral ligament
anterior capsule of glenohumeral joint thickened by
3 weak glenohumeral ligaments
muscle tendons crossing joint mostly contributes to
joint stability
bicep brachii joint funtion
-travels within joint cavity to secure head of humerus to glenoid cavity
rotator cuff muscles joint function
-encircle joint and tendons merge with capsule
elbow joint
-hinge joint through trochlear notch of ulna
-articular capsule attach to humerus, ulna, and annular ligament of radius
-capsule thickened with radial collateral ligament and ulnar collateral ligament
tendons crossing elbow joint provide
joint stability
wrist joint: radiocarpal joint
condylar joint between radius and scaphoid and lunate
wrist joint: intercarpal joint
gliding joint between proximal and distal carpal rows
wrist joint ligaments
palmar radiocarpal ligament, dorsal radiocarpal ligament, palmar ulnocarpal ligament, dorsal ulnocarpal ligament, radial collateral ligament, and ulnar collateral ligament
-all provide stability
