Atlas of Human Anatomy by Netter

[Plate 455, Wrist and Hand: Superficial Radial Dissection]

Wrist (Radiocarpal) Joint

Biaxial synovial joint

Located at a line joining the styloid processes of the radius and ulna

Articulation of distal end of radius and articular disc of radioulnar joint with the proximal row of carpal bones (except the pisiform)

Fibrous capsule surrounds the wrist

From distal ends of radius and ulna to proximal row of carpal bones

Lined by a synovial membrane with numerous folds

Movements

Flexion/extension

Abduction/adduction (radial/ulnar abduction)

Circumduction

Adduction greater than abduction

Ligaments

Dorsal and palmar radiocarpal ligaments from the radius to the two rows of carpals on the palmar and dorsal sides

Ulnar collateral ligament from the ulnar styloid process to the triquetrum

Radial styloid ligament from the radial styloid process to the scaphoid

Blood supply: Branches of the dorsal and palmar carpal arches

Nerve supply

Anterior interosseous branch of median nerve

Posterior interosseous branch of radial nerve

Dorsal and deep branches of ulnar nerve

Hand
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Bones (27)

Carpal bones (bones of the wrist or carpus)

Proximal row: Scaphoid, lunate, triquetrum, pisiform,

Distal row: Trapezium, trapezoid, capitate, hamate

Metacarpals (5) consist of