Neuroblasts are immature nerve cells that play a crucial role in the development of the nervous system. They originate from neural stem cells and are responsible for producing neurons, which are essential for transmitting signals throughout the body. Neuroblasts undergo a process called differentiation, where they mature into specialized neurons that can perform specific functions. During embryonic development, neuroblasts migrate to various regions of the brain and spinal cord, forming the foundation of the central nervous system. Their proper formation and migration are vital for the overall structure and function of the nervous system, influencing everything from movement to sensory perception.