The production of neurons is virtually complete
A)by 28 weeks after conception.
B)by 6 months of age.
C)by 3 years of age.
D)by adolescence.

Question

Quizplus · Accepted Answer

The production of neurons is virtually complete by 28 weeks after conception, which is in the third trimester of pregnancy. After this time, the brain begins to increase in size significantly as neurons migrate and form connections with other neurons. While the brain continues to develop throughout childhood and adolescence, the vast majority of neurons have already been produced by this point.

The Production of Neurons Is Virtually Complete