Nerve impulses travel more slowly in babies than in older children and adults because:
A)the infant does not have as many synaptic connections.
B)dendrites have not yet developed spines in infants.
C)axons are much shorter in infants.
D)the myelin sheaths on axons are not yet fully developed in infants.

Question

Quizplus · Accepted Answer

Myelin sheaths are important for increasing the speed at which nerve impulses can travel along axons. In infants, these sheaths are not yet fully developed, leading to slower nerve impulse transmission.

Nerve Impulses Travel More Slowly in Babies Than in Older