<prompt> The maximum age of this person is:-Less than 12 years5 years6 years18 years  <response>: Among 8 carpal bones, Pisiform has not appeared. it appears at 10- 12years of age Trapezium trapezoid appeared: 6 years Reason: Wrist joint: Center for lower end of radius and ulna appeared, pisiform bone has not appeared; other carpal bones have appeared. Age is more than 6 years and less than 12 years. Minimum age of the person is 6 years; maximum age of the person is 12 years 