Study Guide 320, Exam 3, F11

Study Guide 320, Exam 3, F11 - Study Guide 320 EXAM 3, F11...

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Study Guide 320 EXAM 3, F11 Higley/Sorenson Make sure you review the bold/key terms in the textbook for each chapter Chapter 8 1. How does the body change in terms of size, proportions, and skeletal maturity during early childhood? How is physical growth a synchronous and an asynchronous process? Body growth slows, lose baby fat because they learn to walk, 2 to 3 inches in height and 5 pounds in weight each year, torso lengthens and widens, spine straightens, by age 5 body proportions are similar to adults, Asynchronies: brain and lymph nodes grow fastest 2. Describe the process of physical growth including bones, teeth, and other systems outlined in the chapter. How are boys and girls different? What can go wrong and what can be done to prevent or treat it? How is Utah different from other state with regard to dental care, why? boys slightly larger, girls retain more body fat Bone: epiphysis=cartilage, lengthens and grows, growth plate- cartilage turns to bone, 45 new epiphysis emerge Teeth- by age 3 baby has all teeth Tooth decay- most US cities have fluorinated water preventing cavities, Utah does not 3. Review figures 8.2 & 8.3. Why would expect these peaks in growth or density? Outline in sequence the process of brain growth. Density of synapses in auditory/broca’s, Wernicke’s areas rise sharply during the first 3 years – rapidly developing language skills, as a result of pruning, density falls during the late preschool and school years. During this time, plasticity of cerebral cortex is reduced. Rich growth of cerebellum from 3-6 years (going to school/learning, motor control/balance). Fibers from reticular formation (attention) myelinated into adolescence. Hippocampus (memory) grows extensively from age 3. Corpus callosum peaks at ages 3-6 years (use of multiple areas of brain to solve complex tasks, smooth coordination of movements from both sides of body). 4. Describe the development of the brain across different areas and across ages during early childhood. Brain from 70 to 90 percent of its adult weight, overproduction of synapses, cognitive functions localize to different areas of brain (not entirely the cerebral cortex), 5. What role does apoptosis, synaptic pruning, and myelination play in brain development? How is the development of the cerebral cortex related to motor development? Cerebral cortex- connections between the cerebellum and cerebral cortex support thinking and motor coordination 6. Be prepared to describe or answer questions concerning the relationship of the brain to behaviors in the other 2 chapters? What do we mean by plasticity and sensitive periods? 7. How does heredity influence physical growth? What are the best predictors of eventual size? What is psychosocial dwarfism?
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Pituitary gland- releases growth hormones. Growth hormone is necessary for growth of almost all body tissues. Thyroid-stimulating hormone- necessary for brain development and for GH to have its full impact on body size. Psychosocial dwarfism- appears between 2 and 15 years, decreased GH secretion,
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This note was uploaded on 12/07/2011 for the course PSYCHOLOGY 321 taught by Professor Reber during the Fall '10 term at BYU.

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Study Guide 320, Exam 3, F11 - Study Guide 320 EXAM 3, F11...

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