Joints of the Upper Limb 黃敏銓 2008/10/23 1 Movements of the pectoral girdle Sternoclavicular joint Acromioclavicular joint Glenohumeral joint 2 Sternoclavicular joint (Saddle type synovial joint) Sternoclavicular ligament Interclavicular (anterior and posterior) Articular disc ligament Costoclavicular ligament 3 Motion of clavicle: A‐D = elevation/depression A‐C = protraction/retraction 4 Acromioclavicular joint (plane type synovial joint) Articular disc (weak) (strong) Lesser tubercle Synovial sheath of biceps brachii 5 Glenohumeral joint (ball‐and socket type synovial joint) High mobility: Large humeral head & shallow glenoid cavity Loose joint capsule Glenoid labrum Glenoid cavity 6 (extrinsic) Coracoacromial arch (superior) (inferior) 7 Rotator cuff and glenohumeral joint Deltoid 8 Subacromial bursa Synovial membrane (2 extensions) Synovial sheath of biceps brachii Subscapular bursa 9 Elbow joint and proximal radioulnar joint (hinge type synovilial jijoint ) (pivot type synovial joint) 10 Fat pads (between synovial 上寬下窄 membrane and joint capsule) Synovial membrane Annular ligament Sacciform recess of synovial membrane 11 12 Movements of the elbow joint 13 Carrying angle of elbow joint 14 Bursae around elbow joint Anterior: bicipitoradial bursa (biceps bursa) 15 Distal radioulnar joint (pivot type synovial joint) Articular disc Radius Ulna Sacciform recess 16 Wrist (radiocarpal) joint (Condyloid type synovial joint) Triquetrum Lunate Scaphoid Articular disc (triangular ligament) Radius Ulna 17 Palmar and dorsal radiocarpal ligaments 18 Movements of the wrist joint Flexion Adduction 19 Intercarpal joints (Plane synovial joints) Articular cavity is independent Extension & abduction 20 Carpometacarpal (CMC) and intermetacarpal (IM) joints Plane type synovial jj,oint, except for the CMC joint of thumb (saddle type) Thumb opposition Carpometacarpal joint Intermetacarpal joints 21 Metacarpophalangeal and interphalangeal joints (condyloid type) (hinge type) Deep transverse metacarpal ligament Flexion‐extension only Metacarpophalangeal joints Flexion‐extension Abduct ion‐adduct ion Circumduction Circumduction 22 (hinge type) (condyloid type) 23.