👉 A blastula is a type of cell line that has just formed, or is in the process of forming. It's a type of embryonic stem cell line, which are specialized cells that can differentiate into any other cell type in the body. In the context of embryology, a blastula is often used to describe a young embryo or fetus that is still in its developing stage and has not yet developed enough for it to form into an adult organism. The term "blastula" comes from