CLD 204 Lecture Notes - Lecture 8: Muscle Hypertrophy, Handedness, Pellagra
27 Mar 2017
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Document Summary
Development during the periods of early and later childhood in marked by steady, incremental changes in the cognitive, affective, and motor domains. Early childhood (ages 2 to 6): changes in height/weight. Slow but steady growth gains: height: about 2 in. yearly to puberty, weight: about 5lbs. yearly to puberty, sex differences: minimal. Torso: chest becomes larger than abdomen, stomach protrudes less. Body type: 6-year old"s body looks like that of older children. Muscle mass: accounts for about 25% of body weight, in infancy, there is a lot more fat, now more muscle mass. Dynamic bone growth: susceptible to malnutrition, disease, and illness, growth plate: where growth happens. Responsible for self-regulation, decision making, emotional-regulation, motor development. Neural growth: myelination complete by end of early childhood. Myelination: the development of myelin around the neurons. Eye growth: retina complete by age 6; eyeball not adult size until 12, preschoolers tend to be farsighted. Ear growth: short eustachian tube; more ear infections.
