growth cone

In embryology, a growth cone is the specialized, motile tip of an axon of a growing or regenerating neuron. Neurons, the fundamental cells of the nervous system, are generated during prenatal life and form complex circuits.1

During embryonic development, neuroepithelial cells differentiate into immature neurons. These neurons then migrate to their final locations and extend axons. The growth cones at the tips of these axons are crucial for navigating the developing nervous system. They recognize and respond to molecular signals that guide them to their correct targets, ensuring proper synaptic connections are formed. This process is essential for the intricate organization of the nervous system, with trillions of synapses forming between neurons.2