PSYC 333 Midterm: Exam 2 Test Guide
30 Oct 2014
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Babies grow very rapidly during the first 2 years, often doubling their birth weight by. 6 months and tripling by the end of the first year. From age 2 until puberty children gain about 2-3 inches in height and 7 pounds in weight each year. Physical growth and development are once again obvious at puberty. A 2-3 year growth spurt in which they can gain up to 10-15 pounds a year. After this large growth spurt there are typically small increases in height until full adult stature. Cephalocaudal: a sequence of physical maturation and growth that proceeds from the head to the tail. Proximodistal: a sequence of physical maturation and growth that proceeds from the center of the body to the extremities. The skeletal structures that form during the prenatal period are initially soft cartilage that will gradually ossify (strengthen) into bony material. Allowing child birth to be easier for both the mother and the child.
