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Human Growth and Development Week 3 Notes

by: Madison Greer

Human Growth and Development Week 3 Notes EPY 2513

Marketplace > Mississippi State University > EPY 2513 > Human Growth and Development Week 3 Notes
Madison Greer

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These are the notes from week 3.
Human Growth and Development
Dr. Abernathy
Class Notes
Human, growth, and, development, neuron, axon, dendrite, birth, brain
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This 2 page Class Notes was uploaded by Madison Greer on Thursday September 1, 2016. The Class Notes belongs to EPY 2513 at Mississippi State University taught by Dr. Abernathy in Winter 2016. Since its upload, it has received 8 views.


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Date Created: 09/01/16
8/31/16 Human Growth and Development Chapter 3­ The First Years: Body and Mind • Growth in Infancy ­ body size • average weight ­ birth: 7.5 lbs ­ 24 months: 24 lbs • average length ­ birth: 20 in ­ 24 months: 34 in • Sleep  ­ newborns sleep about 15­17 hours a day, in 1­3 hour segments  ­ newborns’ sleep is primarily active sleep ­ newborns have a high proportion if REM sleep ­ co­sleep or bed share • Brain Basics ­ neuron • one of billions of nerve cells in the central nervous system (CNS) ­ axon • fiber that extends from a neuron and transmits electrochemical impulses from that neuron to the dendrites of other neurons  ­ cortex • outer layers of the brain where most thinking, feeling, and sensing occurs ­ prefrontal cortex • area of the cortex at the very front of the brain that specializes in anticipation,  planning, and impulse control • Brain Development ­ head sparing • a biological mechanism that protects the brain when malnutrition disrupts  body growth  8/31/16 Human Growth and Development ­ dendrite­ receive impulses other neurons ­ synapses­ intersection between an axon and dendrite ­ neurotransmitter • acetylcholine  • serotonin • GABA


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