There's three kind of ways we would categorize the shape of the epithetial tissue. There's squamus, which is just flat, their being squashed so thati almost looks like the by a truck a. And then there's cuboidl, shaped like a square cube and columna, which is long and slender like a column,. Now, quima, squished, cuboidl cube, columne, column. Usually speaking, their shape will have an effect on their function. So yv to flat ones, because it's such a small diameter dimenit squishis there's nothing in size, not much surface the internal It means, this