a Greek primitive, a wrist, called by the ancients brachiale. It consists of eight bones; viz. the os scaphoides, lunare, cuneiforme, forme, forme, trapezium, trapezoides magnum, and uneiforme. The first three make an oblong head, by which they are articulated to the lower extremity of the bones of the fore arm by arthrodia. The articulation of these three bones, with the bones of the inferior row, is such Z z 2 as allows of motion, especially backward and forward, to which the arthrodia of the os magnum with the sca-phoides and lunare greatly contribute. The trapezium on the one side, the pisiforme and cuneiforme on the other, being raised above the rest of the bones of the carpus, make a sort of arch for the secure passage of the flexors of the fingers; and the transverse ligament being extended from one side of the arch to the other, binds them down to their proper place. Lyserus gave the eight bones of the wrist their respective names. The four bones of the second row are all in a line, the first being articulated with the thumb, and the rest with the metacarpus. These bones are very spongy. See Win-slow's Anatomy.