A mother of a 1-month-old infant asks the nurse why it takes so long for infants to learn to roll over. What is the reason for this?
A) A demyelinating process must be occurring with her infant.
B) Myelin is needed to conduct the impulses, and the neurons of a newborn are not yet myelinated.
C) The cerebral cortex is not fully developed; therefore, control over motor function gradually occurs.
D) The spinal cord is controlling the movement because the cerebellum is not yet fully developed.
Correct Answer:
Verified
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