👉 Vitellins are a group of proteins that play a crucial role in the development and maintenance of the nervous system. They are also known as neurotrophic factors, as they have been shown to support and stimulate neuronal growth and function. The term "vitellins" comes from the Greek word "vitrans," which means "to move." In this context, "vitellins" could be interpreted as "movable proteins" that help regulate the nervous system's activity and function