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ED 213-Ch. 2
Ch. 2 Vocabulary
| Term | Definition |
|---|---|
| Myelin | a fatty substance that forms an insulating coat, called a myelin sheath, around axons that allows them to function efficiently. |
| Synapse | a junction where neurons communicate with each other, or with other kinds of cells. |
| Neurotransmitter | a chemical that allows neurons to communicate across synapses. |
| Self-actualization | the process of fulfilling one’s potential in a way that shows concern for society. |
| Synaptogenesis | a spurt in synaptic connections of the brain that occurs from the 3rd trimester of gestation until about 2 years of age. |
| Myelination | the development of myelin |
| Glucose rate | the rate of consumption of glucose, an indicator of energy use in the brain. |
| Sensitive period | a biologically determined time period, typically early in life. In which, a child readily develops specific abilities. Change is less likely before or after the sensitive period. |
| Cortisol | a hormone that the body generates as a response to stress |
| Adverse Childhood Experience (ACE) | early toxic experience resulting in prolonged and intense stress, which leaves a mark on long-term brain architecture and well-being. |
| Brain plasticity | the brain’s ability to change the structure and function as a result of experience. |
| Puberty | physical changes that occur as children move into adulthood, including development of primary and secondary sex characteristics and capacity for reproduction. |
| Nonorganic failure to thrive | failure to grow adequately without any apparent medical reason. |
| Apnea | a sleep disturbance that consists of repeated periods without breathing, and snoring or gasping for breath. |
| Sudden Infant Death syndrome (SIDs) | the sudden death of an infant for whom a cause of death cannot be determined. |
| Teratogen | an agent that harms the developing fetus. |