And what that fluid does is it also protects that fetus by absorbing some of that shock. So it cushions the fetus and prevents any damage from actually happening to the fetus. So this function is similar to the function of the Coryon. But what the amnion also does is it prevents the embryo from drying out and it enables the embryo some freedom of movement. So it allows the embryo to actually move as it grows. And that's important in the process of embryological development.