Insect in anus

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An insect's abdomen is the third functional region tagma of its body; the abdomen is located just behind the thorax. In most insects, the junction between thorax and abdomen is broad, but in some groups, the junction is very narrow petiolate giving the appearance of a "wasp-waist". Entomologists generally agree that insects arose from primitive arthopod ancestors with eleven-segmented abdomens.

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Rectumterminal segment of the digestive system in which feces accumulate just prior to discharge. The rectum is continuous with the sigmoid colon and extends 13 to 15 cm 5 to 6 inches to the anus. A muscular sheet called the pelvic diaphragm runs perpendicular to the juncture of the rectum and anal canal and maintains a constriction between these two segments of the large intestine.

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Itching of the anus the opening at the end of the digestive tract where stool leaves the body and the skin around the anus perianal skin is called anal itching or pruritus ani. See also Overview of the Anus and Rectum. Most often, doctors do not identify a specific disorder as the cause of anal itching, and the itching goes away without treatment after a period of time.

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Pinworms are parasites that live in the intestines. The infection is spread by ingesting microscopic pinworm eggs. Young children often put their hands in their mouths and may not practice good hand hygiene before eating.

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Pinworms are tiny, white, thread-like worms that live in the rectum. The worms crawl out of the anus bum at night and lay their eggs on nearby skin. Children can get pinworms no matter how often they take a bath.

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See what I mean? So we try to get serious, to focus, and ask why has no one gotten to the bottom of this particular mystery before? Is it a crappy research topic, or by not addressing it, have other scientists fallen behind?

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Anal itching, or pruritus ani, is a common symptom of a variety of conditions. Most cases of anal itching can be treated at home without needing to see a doctor. We go over the possible causes, along with at-home remedies to relieve itching.

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In cases of pinworm infestation, or enterobiasis en-tuh-roh-BY-uh-sisa species of small worm lives and reproduces in the human intestines. People become infested when they swallow tiny pinworm eggs, usually after touching something that a person with pinworms has touched. The worms return to the colon, where they usually die, but the eggs can survive for up to 2 weeks outside the human body. If the person scratches around the anus and later touches the lips, it is possible to transfer the eggs from the hands to the mouth, where they are swallowed and begin a new cycle of infestation.

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Which is exactly what the larvae of the tortoise beetles have been doing for millennia. Not content to just sit there and get eaten, using a highly elongated and mobile anus, they build a tower of poo on a special structure on their backs. Insects can opt to dump a whole lot of eggs into the ecosystem and just hope they make it on their own, but tortoise beetles are doting mothers, forming a system known as subsociality.

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Insect morphology is the study and description of the physical form of insects. The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. Three physical features separate insects from other arthropods: they have a body divided into three regions head, thorax, and abdomenhave three pairs of legs, and mouthparts located outside of the head capsule. It is this position of the mouthparts which divides them from their closest relatives, the non-insect hexapodswhich includes ProturaDipluraand Collembola.

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