Why is it that all neurons in a healthy adult brain have made appropriate connections?
A) Chemical messages from our muscles tell our brain how many neurons to form and that number perfectly matches the connections required.
B) If an axon does not make the appropriate connections by a certain age, it dies.
C) We are born with all connections formed.
D) Connections form rapidly, but we learn to use whatever connections have formed.

Question

Quizplus · Accepted Answer

In the process of neural development, neurons make connections through a process called synaptogenesis. If an axon does not make the appropriate connections by a certain age, it undergoes pruning or cell death. Therefore, all neurons in a healthy adult brain have made appropriate connections because those that did not were eliminated during development.

Why Is It That All Neurons in a Healthy Adult