How do you know if a muscle crossing the wrist is a ulnar or radial deviator?,”Place a nail in the middle of the wrist and if it goes more medial, then it is ulnar deviation, if it is more lateral

How do you know if a muscle crossing the wrist is a ulnar or radial deviator?,”Place a nail in the middle of the wrist and if it goes more medial, then it is ulnar deviation, if it is more lateral

then it is radial deviation”