And the apickle side simply means it faces the lumen portion of the small intestine. So basically, on the membrane of the apical side, we have the microvilli, which is also known as the brush water. And on this membrane, we have many peptidases that are responsible for breaking down the small peptides into amino acids, dipeptides and tripepptides. So once again, to summarize, let's go through the following flow chart. So we begin by ingesting our proteins into the oral cavity. They eventually travel down into the stomach.