KNR 225 Study Guide - Midterm Guide: Epiphyseal Plate, Hypertrophy, Scurvy
Document Summary
Development changes in an individual"s level of functioning over time. 5 factors that affect growth & development: nutrition- most important factor to influence physical development during the prenatal period. First 4 yrs of malnutrition can have permanent lags. Growth retardation- child"s height fails to fall within the growth norms for age level. Chronic malnutrition- severe undernourishment that may result in growth retardation in young children: exercise & injury: hypertrophy and atrophy. Exercise increases bone width and promotes bone mineralization, which make for stronger, less brittle bones. Exercise to the extreme can cause bone injury resulting in height/weight decrease, growth plate injuries: physical activity: activity promotes muscle development. Activity generally has positive effects on the growth of children. Negative effects occur if activity is carried to the extreme: illness and climate: standard childhood illness does not effect the growth of children. The illness effect is based on duration, severity, and timing.
