The nervous system is the first system that develops in the womb.
At the moment of conception, one cell from mom and one cell from dad come together to form a new single cell that becomes a unique child in the world—you.
The Cells
This one cell divides into 2 cells, 4 cells, 16 cells, and multiplies into millions of cells in no time at all. In fact, the first neural cells begin to divide and differentiate between the two types of cells at the 5th week of pregnancy. They form the neurons and glia that becomes the body’s nervous system. This is the first system to develop in the body.
Primitive Streak
Together these cells are called the
The First System
that Develops
by Dr. Eric Plasker, DC