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Infants and Toddlers Biosocial Development HDFS 1351

Terms in this set (31)

weight doubles by 4-5 months
0-4 months
weight triples
1 year old
half of adult height and one-fifth of adult weight
two years old
defined standards of child's development in a variety of domains, these numbers are norms, and individuals vary
norms
number that indicates rank compared to others of same age and range from zero to 100
percentiles
connections in the brain
nervous system
billions of nerve cells in the central nervous system (CNS) and communication within CNS begins with neurons
neuron
region deep inside brain which controls automatic responses
brain stem
area of brain that affects emotions and memory
midbrain
outer layers of the brain where most thinking, feeling, and sensing occurs
cortex
area of the cortex at the very front of the brain that specializes in anticipation, planning, and impulse control
prefrontal cortex
fiber that extends from a neuron and transmits electrochemical impulses from that neuron to the dendrites of other neurons
axon
fiber that extends from a neuron and receives electrochemical impulses transmitted from other neurons via their axons
dendrite
intersection between the axon of one neuron and the dendrites of other neurons
synapse
brain chemical that carries information from the axon of a sending neuron to the dendrites of a receiving neuron
neurotransmitter
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