Which of the following occurs to the brain as we age
A) New neurons continue to form.
B) Glial cells increase in number.
C) Myelination increases.
D) both b and c

Question

Quizplus · Accepted Answer

As we age, the brain undergoes various changes, including an increase in the number of glial cells, which are crucial for maintaining homeostasis, forming myelin, and providing support and protection for neurons. Additionally, myelination can increase in certain brain areas, which helps in the insulation of nerve fibers and improves the speed of electrical impulses. While the formation of new neurons (neurogenesis) does occur in certain parts of the brain, such as the hippocampus, the predominant changes noted with aging are increases in glial cells and myelination in specific contexts.

Which of the Following Occurs to the Brain as We