GROWTH- is the increase with age in weight and height, or size as it is popularly designated, that comes about as a result of the increased number of cells and their differentiation for various functions in the in length and thickness of the bone.
Remember that during fetal life and infancy the rate of growth is very rapid if there are adequate nutrients available. The same hold true in adolescence, whereas a slowing of growth is expected and natural during the early childhood years.