Hien Nguyen -Week 11 Assignment Due Sunday April 17

Hien Nguyen -Week 11 Assignment Due Sunday April 17 - Hien...

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Hien Nguyen FCS 70 Assignment of chapter 11 & due 17 April 11.1 Describe changes in body size, proportions, and skeletal maturity during middle childhood. - S chool-age children's growth is slow and regular though large individual and ethics variations exist in physical growth. They add about 2 to 3 inches in height and 5 pounds in weight each year. By the age of 9 girls overtake boys in physical size - Secular trends in physical growth have occurred in industrialized nations, improved health and nutrition many children are growing larger and reaching physical maturity earlier than their ancestors - Bones continues to strengthen and broaden, permanent teeth replace primary teeth. 1/3 of school age children suffer from malocclusions, making braces common by the end of elementary school. 11.2 Describe brain development in middle childhood. (p. 408) Only a small gain in brain size occurs during middle childhood. White matter (myelinated nerve fibers) increase steadily. As interconnectivity among distant areas of the cerebral cortex increases, the prefrontal cortex becomes a more effective “executive,” yielding more flexible, adaptive behavior. At the same time, gray matter (neurons and supportive material” peaks and then declines as a result of synaptic pruning and accompanying reorganization and selection of brain circuits result in more efficient information processing. 11.3 Describe the causes and consequences of serious nutritional problems in middle childhood, giving special attention to obesity. (pp. 409–414) - Poverty-stricken children in developing countries and in North America continue to suffer from serious and prolonged malnutrition, which can permanently impair physical and mental development.
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