The wrist is the joint that links together the lower arm and the hand.
Micro-radiography of 8 weeks human embryo hand
Projectional radiograph of a normal wrist (left image) and one with a dorsal tilt due to wrist osteoarthritis (as well as osteoporosis). The angle of the distal surface of the lunate bone is annotated. A dorsal tilt of 10 to 15 degrees of dorsal tilt is considered normal.