Human Anatomy Part 1 - K. A. Dyubenko, A. K. Kolomiysev, Yu. B. Chaykovsky 2002

Special Part
Appendicular skeleton, sceleton appendiculare — Bones of the upper limb, ossa membri superioris
Bones of the hand — Carpal bones

- scaphoid, os scaphoideum;

- lunate, os lunatum;

- triquetrum, os triquetrum;

- pisiform, os pisiforme;

- trapezoid, os trapezoideum,

- trapezium, os trapezium;

- capitate, os capitatum,

- hamate, os hamatum.

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Fig. 65. BONES OF THE hand, ossa manus (Continued): B — dorsal surface, facies dorsalis

The Carpal Bones, ossa carpi [carpalia] (LNA), consist of eight short spongy bones arranged in two rows of four each (see Fig. 65). They are named according to their shape. These bones are arranged as follows: in the proximal row, starting from the thumb side, there are the scaphoid, lunate, triquetrum, and pisiform bones; while the distal row is formed by the trapezoid, trapezium, capitate, and hamate. The bones of the proximal row form an arch, the convexity of which articulates with the carpal articular surface of the radius, facies articularis carpalis; in addition, they form articular surfaces for interconnection with each other. The scaphoid bone and the trapezium feature tubercles on their surfaces, whereas the hamate bone has a hook, hamulus, which serve as attachment sites for ligaments and tendons. The carpal bones form the carpal tunnel, canalis carpi [carpalis], on the palmar aspect, which serves as a passage for Blood Vessels, nerves, and tendons.