09 - Physical development in Middle Childhood

09 Physical - (6 12 years old Aspects of Physical Development Body Growth Children grow about 2 to 3 inches each year and gain about 5 pounds or

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1 (6 – 12 years old) Aspects of Physical Development Body Growth •Children grow about 2 to 3 inches each year and gain about 5 pounds or more. •Girls are slightly shorter and lighter than boys at ages 6 to 8, but by age 9, this trend is reversed. •The lower portion of the body is growing fastest at this age. Skeletal Growth During this period, the body’s bones lengthen and broaden, but ligaments are not yet firmly attached to bones. Thus, children are granted unusual flexibility of movement. Secular Trend in Physical Growth Although secular gain in height has slowed in recent decades, weight gain is continuing at a high rate. Brain Development • Brain weight increases by only 10%. White matter increases steadily. Gray matter declines due to synaptic pruning and death of surrounding neurons. Other development takes place at the level of neurotransmitters. • Brain functioning may also change because of an increase in androgens (male sex hormones) that occurs in both boys and girls around age 7 to 8.
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This note was uploaded on 04/22/2008 for the course SOC 321 taught by Professor Reiter during the Fall '08 term at Ohio State.

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09 Physical - (6 12 years old Aspects of Physical Development Body Growth Children grow about 2 to 3 inches each year and gain about 5 pounds or

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