The brain and spinal cord lose weight and nerve cells.
This is the biological process where the brain removes extra neurons and synaptic connections to increase the efficiency of transmissions. It is most active during infancy and again during the teenage years.
Brain reaches 90% of adult size; rapid myelination (nerve insulation) improves motor skills, language, and higher-order cognition. 5 – 13 Years development and aging timeline pltw answer key
As individuals enter middle adulthood, they experience a range of physical, cognitive, and emotional changes. PLTW suggests that this period is marked by reflection, evaluation, and re-evaluation of priorities, as individuals navigate career changes, caregiving responsibilities, and declining physical abilities. While cognitive decline may begin, many individuals continue to develop and refine their expertise, leveraging experience and wisdom.
Development and Aging Timeline HBS 2.1.1 Flashcards | Quizlet The brain and spinal cord lose weight and nerve cells
The Project Lead The Way (PLTW) Human Body Systems (HBS) curriculum includes a critical study of how the human brain and body evolve over time. The (Activity 2.1.1 or 3.2.5) provides a structured look at life stages, focusing heavily on neurobiology and physiological milestones. PLTW Development and Aging Timeline Answer Key
The prefrontal cortex begins to mature, aiding in planning and reasoning. Brain reaches 90% of adult size; rapid myelination
In aging, the brain regions that are the last to develop (like the prefrontal cortex) are often the first to show signs of decline or atrophy in old age.
Development and Aging Timeline HBS 2.1.1 Flashcards | Quizlet
As children enter elementary school, they undergo significant cognitive and social changes, as described by PLTW. This period is marked by improved problem-solving skills, increased independence, and the formation of peer relationships. During adolescence, rapid physical growth and hormonal fluctuations occur alongside cognitive advancements, such as abstract thinking and identity exploration. PLTW highlights the importance of supportive relationships, self-efficacy, and exploration in facilitating healthy development during this phase.