01:830:331 Chapter Notes - Chapter 6: Prenatal Care, Retina, Physical Abuse
21 Nov 2016
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Principles of early growth and physical development. Cephalocaudal principle: growth occurs from top down. Year one: brain is 70% of its adult weight but the rest of the body is only. Head becomes proportionately smaller as the child grows in height and the lower parts of the body develop. Sensory and motor development proceed according to the same principle. Infants learn to use the upper body before the lower. Proximodistal principle (inner to outer): growth and motor development proceed from the center of the body outward. Head and trunk develop before arms and legs in the womb, then the hands and feet, then fingers and toes. Limbs continue to grow faster than the hands and feet during infancy and early childhood. Babies learn to use parts of their body closest to the center of their body before they learn to use the outermost parts.
