词汇 | midgut |
释义 | midgut noun[ Cusually singular ] anatomy specialized(alsomid-gut)uk /ˈmɪd.ɡʌt/ us /ˈmɪd.ɡʌt/ the middle part of the digestive system of humans and animals, including the small intestine and part of the large intestine, or a similar part of the digestive system of insects: midgut ofThe necessary conditions apparently occur in the midgut of mosquitoes. Most midgut carcinoid tumours are not visible on a CT scan. These results reveal the complexity of the relationship between viruses inside the sandfly mid-gut. There is a 28 percent mortality rate associated with midgut volvulus. After ingestion, the toxin is activated in the highly alkaline insect midgut. The digestive system brush border caecal cardia chyme coeliac digestive tract intestinal intestine intraluminal jejunal jejunum lacteal large intestine rectum small intestine unassimilable ureteral vermiform appendix vermiform process villous Compareforegut hindgut Synonymmesenteron Examples of midgutmidgut These spores would probably accumulate in the occluded midgut of the developing parasitoid. In contrast, the blood-meal of insect vectors is digested extracellularly (within the midgut lumen). Further, there were significant differences in the midgut protease profile for each stage, except for chymotrypsin. Although specific to the midgut of females, it does not seem to be expressed in higher quantities in blood-fed females (fig. 3b). Do malaria parasites mate non-randomly in the mosquito midgut ? Five rounds of panning yielded only one midgut-specific clone, which predominated the resulting antibody panel. The transient diploid stage (the ookinete) attaches to the mosquito midgut wall where it develops into an oocyst. This could conceivably result in deficits of heterozygous oocysts in the midgut wall. Thus, viruses entering the tick midgut are exposed to different environmental conditions compared with those existing in, for example, the mosquito midgut. The cardia region spans the very anterior part of the thoracic midgut, the stomodeal valve and the oesophagus. Flies were dissected 27-46 days later and the midgut, proboscis and salivary glands of each fly were examined for the presence of trypanosomes. The presence of a gut barrier in ticks indicates that there is a specific interaction between virus (imbibed in the bloodmeal) and midgut cells. All are oriented with the anterior to the right and show the mouthparts, the two dorsal branches of the tracheae and the midgut. Shortly after the midgut turns brown, movement ceases, the entire animal turns brown and the internal organs all deteriorate. From that point on, the embryos that did not hatch progressed through the stages of brown midgut, brown tracheae and death. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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