Describe the anatomy of the wrist joint

Introduction: the wrist joint is a condyloid type of synovial joint. It is formed between the distal end of the radius and the carpus.
Articular surfaces: distal end of the radius and the articular disc of the distal radioulnar joint articulates with the proximal row of the carpal bones: scaphoid, lunate and triquetral.
Capsule: this is attached proximally to the distal ends of the radius and ulnar and distally to the proximal row of carpal bones. It is strengthened by dorsal and palmar radoocarpal ligaments.
Blood supply: the articular arteries are derived from the dorsal and palmar carpal arterial arches.
Nerve supply: by twigs from the anterior interosseous and posterior interosseous nerves.
Movement: adduction, abduction, flexion, extension and circumduction are possible.
Synovial membrane: this lines the fibrous capsule and is attached to the margins of articular surfaces of the wrist.
Clinical correlates:
Colle’s fracture involve the distal end of the radius and it occurs when a person slips and in attempting to break the fall, lands on the outstretched arm with the forearm pronated.

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