The document discusses key concepts related to child development including growth, development, maturation, brain growth, motor development, and factors that influence development such as environment, heredity, injury, illness, experience, nutrition and others. It notes that brain growth lays the foundation for other aspects of development and that head circumference is an important measurement, being determined both by genetics and the prenatal environment, while postnatally it is impacted more by daily experiences. Motor development progresses from gross to fine and from cephalocaudal to proximodistal in an ongoing, sequential and interrelated manner, with individual rates and maturation playing a role, influenced by both heredity and environment.
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