a gyrus is a fold of neural tissue, a sulcus is a groove

In the embryo the neural tube forms the central nervous system in the fetus, which is the brain and spinal cord.

The reason pregnant women are given folic acid supplementation is to help prevent neural tube defects, which can range from fairly benign all the way to anencephaly (where the baby is born without a brain).

Comic Groove - 2002 1-1 was released on:

USA: 2 September 2002

groove. it skips level 1 it skips you to level 2. :)

Comic Groove - 2002 1-2 was released on:

USA: 9 September 2002