carpal

Lunate Bone

Lunate The structure indicated is the lunate bone of the hand. There are three groups of bones in the hand: Carpal bones (8 in total) Metacarpal bones Phalanges The carpal bones are separated into two rows: Proximal row Distal row The lunate bone is one of four bones in the proximal row of carpals (scaphoid, lunate, triquetrum, pisiform). The lunate bone is located centrally in the wrist between the scaphoid and triquetral bones. It gets its name from its crescent shape (lunar = relating to the moon). It has the following articulations: Proximal: Radius Distal: capitate and hamate Lateral: scaphoid …

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Lunate bone

Hamate Bone

Hamate Bone The structure indicated is the hamate bone of the hand. There are three groups of bones in the hand: Carpal bones (8 in total) Metacarpal bones Phalanges The carpal bones are separated into two rows: Proximal row Distal row The hamate bone is one of four bones in the distal row of carpals (hamate, capitate, trapezium, trapezoid). It is named after its small hook-like process (“hamulus” comes from the Latin meaning hook). Several structures attach to the hook of the hamate bone. The hamate bone has the following articulations: Radial: capitate Ulnar: pisiform Proximal: lunate Distal: metacarpals of …

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hand - hamate