Once food leaves the crop, it passes to the midgut (element 13 in numbered diagram), also known as the mesenteron, where the majority of digestion takes place. Microscopic projections from the midgut 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 midgut. 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 midgut, and absorption near the origin or beginning of the midgut.:32 COUNT 5
QSN1 What is another name for mesenteron? ANS1 midgut QSN2 Food goes in to the midgut after leaving where? ANS2 the crop QSN3 The majority of an insects digestion happens where? ANS3 the mesenteron QSN4 What kind of projections are in the midgut wall? ANS4 Microscopic QSN5 What are microscopic projections called? ANS5 microvilli