The nurse is teaching a group of students about myelinization in a child. Which statement by the students indicates that the teaching was successful?
A) Myelinization is completed by 4 years of age.
B) The process occurs in a head-to-toe fashion.
C) The speed of nerve impulses slows as myelinization occurs.
D) Nerve impulses become less specific in focus with myelinization.
Ans: B
Myelinization occurs in a cephalocaudal, proximodistal manner and is completed by 2 years of age. As myelinization proceeds, nerve impulses become faster and more accurate.
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