42+ Palmar Hand Anatomy Bones. 21.13 intrinsic muscles of the hand: The hand and wrist bone anatomy is shown on palmar view using labeled photograph and illustration.
Mnemonics of the carpal bones are numerous and useful for memorizing the order and location of the bones. The 8 bones of the carpus (wrist), arranged in two sets of four; Scaphoid, lunate, triquetrum, pisiform (a sesamoid), trapezium, trapezoid, capitate.
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The carpals join with the two forearm bones, the radius and ulna, forming the wrist joint. Os trapezoideum is usually the smallest carpal bone (when compared to other carpals from the same hand) with the wedge shape. Palmar interossei ad duct the fingers, and dorsal interossei abduct the fingers (hence pad/dab). The radial artery enters the hand by passing between the two heads of the first dorsal.