Answer:
The speed of neurotransmission in the frontal lobe increases during adolescence due to the growth of Myelin
Step-by-step explanation:
Myelin is a fatty material, rich in lipids, which coats nerve cell axons to separate them and increases the rate of data transmission along the axon. The myelinated nerve cell axon can be associated with an electrical wire, i.e, axon covered by insulating material called myelin. Due to this action people will be more active, enthusiastic as the transmission of signals are very fast.
In other words, Myelin can significantly increase the speed of neurotransmission as it separates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length. The growth in myelin results in the increase of speed of transmission of electrical impulse along the nerve cell or the axon