PSYCH211 Study Guide - Quiz Guide: Phonological Awareness, Permanent Teeth, Pragmatics
30 May 2017
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Document Summary
Between ages 2 and 6 approximately 45 new epiphysis or growth centers in which cartilage hardens into bone emerge in various parts of the skeleton. X rays of these growth centers enable doctors to estimate skeletal age, progress toward physical maturity, and information helpful in diagnosing growth disorders. Diseased baby teeth can affect health of permanent teeth. Exposure to tabaco smoke suppresses children"s immune system. Between ages 2 and 6 the brain increases from 70% of its adult weight to 90% Preschoolers improve in a wide variety of skills-physical coordination, perception, attention, memory, language, logical thinking, imagination. Age 4 to 5, many parts of the cerebral cortex have overproduced synapses. Overabundance of synaptic connections supports plasticity of the young brain, ensuring children acquisition of certain abilities even if some areas are damaged. Synaptic pruning, neurons seldom stimulated lose their connective fibers. Structures of stimulated neurons become more elaborate and require more space surrounding neurons die and brain plasticity declines.
