Which part of the hand is more sensitive to vibrations during assessment?

The ulnar surface of the palm is more sensitive to vibrations during assessment because it is equipped with a higher concentration of sensory receptors, particularly those responsive to vibration and pressure. This area includes the hypothenar eminence, which is located on the inner surface of the hand, and it has a rich supply of mechanoreceptors that enhance its ability to detect vibrations more effectively than other parts of the hand.

The tips of the fingers, while also sensitive, are more adept at fine touch and texture perception, rather than primarily detecting vibrations. The dorsal side of the hand has fewer sensory receptors compared to the palmar side and is generally less sensitive to vibrations. Therefore, when performing assessments that necessitate vibration detection, the ulnar surface of the palm is the optimal choice due to its anatomical and sensory design specializing in this function.