<prompt> Greatest amount of cranial growth occurs by:Birth to five years5 6 years6 7 years7 10 years  <response>: The head of a newborn is about 5560 of adult head breadth, 4050 of adult height and 3035 of adult depth. The cranium to-face ratio in a newborn is 8:1. With continued development, especially of the lower face, the ratio changes to 1:2 in adulthood.By the age of 8 years, the brain is nearly 95 of its adult size. This rapid growth spurt is followed by a plateau phase of slow but steady growth that continues till adulthood. 