THE UPPER EXTREMITY. 75 



The inferior radio-ulnar joint. 



Class: Diarthrosis. Subdivision: Lateral Ginglymus. 

 Anterior radio-ulnar ligament. 



Posterior radio-ulnar ligament. Interosseous membrane. 

 Triangular fibro-cartilage. 

 Synovia! membrane. 

 Arterial supply. 

 Nerve -supply. 



The movements of the radius. 

 The carpal joints, 249-50-1-2-3. (254-5-6-7-8) 



Joints of the first row. 



Joints of the second row. 



Medio-carpal. 

 The union of the first row of carpal bones. 



Class : Diarthrosis. Subdivision : Arthrodia. 

 Two dorsal ligaments. 

 Two palmar ligaments. 

 Two interosseous fibre-cartilages. 

 Synovia! membrane. 



The union of the pisiform bone with the rest of the first row. 



Capsule. 

 The union of the second row of carpal bones. 



Class : Diarthrosis, Subdivision : Arthrodia. 

 Three dorsal ligaments. 

 Three palmar ligaments. 

 Two interosseous ligaments. 

 Synovial membrane. 



The medio-carpal joint, or the union of the two rows of the carpus with one 

 another. 



Ligaments: Anterior or palmar medio-carpal. 



Posterior, or dorsal medio-carpal ligament. 



Transverse dorsal ligament. 

 Synovial membrane. 

 Arterial supply. 

 Nerve-supply. 

 Movements. 



The carpo-metacarpal joints, 253-4-5. (258-9) 



Carpo-metacarpal joints of the four inner fingers. 

 Carpo-metacarpal joint of the thumb. 

 The four inner carpo-metacarpal joints. 



Class : Diarthrosis. Subdivision : Arthrodia. 

 The dorsal ligaments. 

 The palmar ligaments. 

 Interosseous ligament. 

 Synovial membrane. 

 Arteries. 

 Nerves. 

 Movements. 



The carpo-metacarpal joint of the thumb. 



Class : Diarthrosis. Subdivision : Arthrodia. 

 Capsular ligament. 

 Synovial membrane. 

 Arteries. 

 Nerves. 

 Movements. 



The intermetacarpal articulations, 255. (260) 



Class : Diarlhrosis. Subdivision : Artkrodia. 

 Dorsal ligaments. 

 Palmar ligaments. 

 Interosseous ligaments. 

 Arteries. 

 Nerves. 

 Synovial membrane. 



