midgut
Intestinal tract section
The midgut is the middle section of the digestive tract, between the foregut and hindgut.
In vertebrate embryos, it develops into most of the small intestine.
In insects and other arthropods, the midgut is where most digestion and nutrient absorption occurs: The caterpillar's midgut breaks down plant material.
Second small intestine portion
- ileumLast small intestine segment
- duodenumInitial small intestine
- mesenteryTissue suspending intestines internally
- lumenLight output measure
mucosa · submucosa · muscularis · serosa · villi · intestinal · gastrointestinal · mesenteric
Innermost embryonic tissue layer
- developmentProgress toward maturity
- gastrulationEmbryo forms primary layers
- organogenesisEmbryonic tissue becoming structures
- morphogenesisDevelopmental shape emergence
Reaction-speeding proteins
- chymePartially digested stomach contents
- amylaseStarch-digesting enzyme
- lipaseFat-dissolving enzyme
- proteaseProtein-cleaving enzyme
bile · pancreatic juice · peristalsis · breakdown · hydrolysis · emulsification · segmentation · motility
Six-legged invertebrate
- arthropodJointed-limb invertebrate phylum
- cropCultivated agricultural plants
- cardiaStomach's upper aperture
- crustaceanAquatic arthropod with exoskeleton
larva · mosquito · caterpillar
Vital dietary substances
- permeabilityAbility to transmit fluids
- osmosisSolvent crossing semipermeable barrier
- transportersVehicles that convey cargo
- electrolytesConducting ions in solution
amino acids · glucose · fatty acids · monosaccharides · microvilli · capillaries · endocytosis · sodium
jejunum
Second small intestine portion
- ileumLast small intestine segment
- duodenumInitial small intestine
- mesenteryTissue suspending intestines internally
lumen · mucosa · submucosa · muscularis · serosa · villi · intestinal · gastrointestinal · mesenteric · artery
endoderm
Innermost embryonic tissue layer
- developmentProgress toward maturity
- gastrulationEmbryo forms primary layers
- organogenesisEmbryonic tissue becoming structures
morphogenesis · differentiation · yolk sac · herniation · hindgut
enzymes
Reaction-speeding proteins
protease · bile · pancreatic juice · peristalsis · breakdown · hydrolysis · emulsification · segmentation · motility · churning
insect
Six-legged invertebrate
- arthropodJointed-limb invertebrate phylum
- cropCultivated agricultural plants
- cardiaStomach's upper aperture
crustacean · larva · mosquito · caterpillar
nutrients
Vital dietary substances
- permeabilityAbility to transmit fluids
- osmosisSolvent crossing semipermeable barrier
- transportersVehicles that convey cargo
electrolytes · amino acids · glucose · fatty acids · monosaccharides · microvilli · capillaries · endocytosis · sodium · potassium
- digestionstomach acid, swallowing, digesting, chewing, digestion
- bug partsantennae, thorax, abdomen, head, legs
- insect anatomyabdomen, antennae, thorax, exoskeleton, head
- arachnid anatomyspinnerets, pedicel, carapace, book lungs, cephalothorax
- midgutdigestive enzymes, pyloric caeca
- Vector Diseasesmalaria, dengue, Zika, dengue fever, West Nile