👉 In anatomy, a frustum is defined as a membrane or layer that encloses an organ or part of an organ. It's characterized by its thin and irregular shape, which allows for better communication between different parts of the body. The term "frustulum" originates from Latin, which means "pits." In Greek mythology, it was associated with the god Apollo, who is known to have created a large pit in his field called the Helicon. This pit became known as the