We have eight bones in the wrist and one way to remember their names and positions in the hand/wrist region is to use the following medical mnemonic device: Some Lovers Try Positions That They Can't Handle ...or Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, and Hamate.
Using the Some Lovers... phrase, you are able to remember the names of the bones by referring to the first letter in each of the words in the phrase, and you are also able to remember the positioning of the bones based on their ordering in the phrase. For instance, Some Lovers Try Positions refers to the proximal (closer to the elbow) row of bones, moving lateral to medial (or in the thumb to pinky direction), while That They Can't Handle refers to the distal (closer to the fingers) row of bones, also moving lateral to medial (or in the thumb to pinky direction).
Confusing when written in words? Probably. Here's a picture instead:
|The Carpal Bones. Drawn by Becca.|