How Neurons Connect before Birth?

These Hand line structures are called 'growth cones' of Neurons/Nerve Cells.
In simple terms, growth cones are like the "GPS" of nerve cells. They help nerve cells find their way to the right place in the brain by responding to different signals like road signs. Imagine growth cones as tiny structures at the tip of nerve cells that act as guides, steering the nerve cell in the right direction. These growth cones are crucial during brain development, ensuring that nerve cells connect correctly with each other to form a functional brain.