In adolescence the growth of , the fatty tissue that forms around axons and speeds neurotransmission, enables better communication with other brain regions.

Myelin (also called Myelin Sheath).

Explanation:

  This sheath is actually formed by special cells called Shwann Cells, that are wrapped around the axon. These membranous layers of these cells are made up of whitish fatty material. The myelin sheet also increase the speed at which impulses travel along an axon. All these explains how help the brain and other parts to speed neurotransmission and aid better communication.

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if im wrong correct me but have a blessed day!

answer; have joints that fail from excess by early the accumulated effects of unnoticed infections,all of these things are possible for a person born without the ability to feel pain;