Once food leaves the crop, it passes to the <answer>midgut</answer> (element 13 in numbered diagram), also known as the mesenteron, where the majority of digestion takes place. Microscopic projections from the <answer>midgut</answer> wall, called microvilli, increase the surface area of the wall and allow more nutrients to be absorbed; they tend to be close to the origin of the <answer>midgut</answer>. In some insects, the role of the microvilli and where they are located may vary. For example, specialized microvilli producing digestive enzymes may more likely be near the end of the <answer>midgut</answer>, and absorption near the origin or beginning of the <answer>midgut</answer>.:32
What is another name for mesenteron?
midgut