A nurse is explaining to parents how the central nervous system of a child differs from that of an adult. Which statement accurately describes these differences?
a. The infant has 150 milliliters of cerebrospinal fluid compared with 50 milliliters in the adult.
b. Papilledema is a common manifestation of increased intracranial pressure in the very young child.
c. The brain of a term infant weighs less than half of the weight of the adult brain.
d. Coordination and fine motor skills develop as myelinization of peripheral nerves progresses.
D
Peripheral nerves are not completely myelinated at birth. As myelinization progresses, so does the child's coordination and fine muscle movements. An infant has about 50 milliliters of cerebrospinal fluid compared with 150 milliliters in an adult. Papilledema rarely occurs in infancy because open fontanels and sutures can expand in the presence of increased intracranial pressure. The brain of the term infant is two-thirds the weight of an adult's brain.
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