“The foetus begins to move when it is only about 2 centimetres in length and only a few weeks old. These movements usually consist of the limbs being bent and moved in towards the body and the trunk curling forward (this is known as flexion). Some foetal movements involve stretching and straightening of the limbs and trunk (this is known as extension). After birth babies’ movements are mainly directed towards survival, such as sucking when the side of the mouth is rubbed, grasping when the palm of the hand is touched, and blinking when something appears to be moving towards the face.” (150)
Ref: Carolyn O’Brien (1994) ‘Motor development and learning in children’ pp.146+ in The Early Years; development, learning and teaching, Eds Gillian Boulton-Lewis and Di Catherwood. The Australian Council for Educational Research: Victoria, Australia.