The epithelial cells are relatively thick. Now, the reason we divide the Loop of Henley into these three segments is because each one of these sections carries out its own unique function. Now, before we examine the individual function of these three segments, let's discuss what the overall function of the Loop of Henley is. So, the loop of Henley utilizes a system known as the countercurrent multiply system. And what that system does is it increases the amount of solute, it increases the concentration of the ions found within our tissue surrounding our Loop of Henley. And the tissue surrounding the loop of Henley is known as the insertuum.