HDFS 1070 Chapter Notes - Chapter 3: Dishabituation, Prenatal Development, Computer Keyboard
18 Sep 2018
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Cephalocaudal pattern - the sequence in which the earliest growth always occurs at the top - the head - with physical growth gradually working from top to bottom. The top parts of the head - the eyes and brain - grow faster than the lower parts, such as the jaw. Proximodistal pattern - the sequence in which growth starts at the center of the body and moves toward the extremities. Infants control the muscles of their trunk and arms. Average north american newborn: 20 inches long, 7. 5 pounds. Increases their birth length by about 40 percent by their first birthday. The infant that started as a single cell has a brain that contains tens of billions of nerve cells, or neurons. Shaken baby syndrome - brain swelling and hemorrhaging, affects hundreds of babies in the united states each year. So the head should be protected from falls or other injuries. Assessing the infant"s brain activity is not easy.
