The development of neurons, also known as nerve cells, occur through a delicate process. Signaling molecules “turn on” certain genes and “turn off” others, beginning the process of nerve cell induction.
Even more astonishing is that this process takes place as the embryo is developing. Induction and proliferation are followed by migration, during which the newly formed neurons travel to their final destination.
During the early stages of embryonic development, three layers emerge — the endoderm, the ectoderm, and the mesoderm. These layers undergo many interactions to grow into organ, bone, muscle, skin, or nerve tissue.
To learn more about the making of a neuron, visit BrainFacts.org.