Respuesta :

Kalahira
Susan's wrist is tired from typing on her keyboard all day. She moves her wrist in a circular movement to stretch it out.
W0lf93
The movement being performed is rotation. The wrist performs the flexion motion when it is bent forwards, with the palm facing downwards. The motion of extension is carried out when the wrist bends backwards with the palm facing upwards. The motion of rotation is when the join rotates about its axis.