Thinking about the structure of this "pick-up organ" how is the surface area to volume ratio maximized?

If we pick small intestine as and organ we can observe its large the surface area/volume ratio. The ration between surface and volume is important, because it impact the function of the organ. In this case, small intestine absorbs the nutrients more efficiently. The surface of the small intestine is increased due to finely wrinkled internal surface and convoluted surface composed of the microvilli (cellular membrane extensions for better absorption).