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.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.