Category: R
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Rellne
The refitting of an old denture to a wasted gum, by using the denture to take an impression.
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Reissner’s membrane
The membrane that separates the scala vestibuli and the scala media of the cochlea of the ear. A delicate membrane separating the cochlear canal from the scala vestibuli.
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Reduvius
A genus of predatory bloodsucking reduviid bugs. The widely distributed species R. personatus, normally preys upon insects but occasionally attacks man. Its bite causes various allergic symptoms, including rash, nausea, and palpitations. A genus of true bugs belonging to the family Reduviidae.
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Reduviid
Any one of a group of winged insects (Reduviidae) whose mouthparts, adapted for piercing and sucking, take the form of a long proboscis that is tucked beneath the head when not in use. Some South American genera, notably Panstrongylus, Rhodnius, and Triatoma (the kissing bugs), are nocturnal bloodsucking insects that transmit the parasite causing Chagas…
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Redia
The third-stage larva of a parasitic fluke. Rediae develop within the body of a freshwater snail and undergo a process of asexual reproduction, giving rise to many fourth-stage larvae called cercariae. The stage in the life cycle of a trematode that follows the sporocyst stage. It is a saclike form with an oral sucker and…
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Record linkage
The means by which information about health events from several different sources (e.g. hospital attendance, vaccination, and consultation with general practitioners) are all related to a specific individual in a common file or more usually a computerized record. This contrasts with data in which events only are recorded and two separate individuals treated for the…
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Running injuries
The group of physical disorders produced by running, usually occurring as a result of overloading musculoskeletal structures of the lower limbs. Running injuries may result from running too hard or too soon after beginning an exercise program. A progressive and relentless weekly increase in mileage distance, the amount depending on the fitness of the athlete,…
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Rolfing
A system of manipulation of connective tissues to relieve physical misalignment. Rolfing, which is also called structural integration, bodywork, and Hellerwork, was invented by a biochemist who believed that physical and emotional stress, as well as gravity, can throw the body out of vertical alignment, thereby causing connective tissue to become rigid and inflexible. By…
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Rofecoxib
A drug used to relieve arthritis symptoms. Rofecoxib (Vioxx) is used to treat some symptoms of arthritis, including joint pain, swelling, stiffness, and inflammation. Rofecoxib does not cure arthritis. It is also used to relieve the pain of moderate menstrual cramps and pain following surgery. Rofecoxib is a form of COX-2 inhibitor medication designed to…
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Rituximab
An anticancer drug; a monoclonal antibody. Rituximab (Rituxan) is used to treat non-Hodgkin lymphoma, a type of cancer. Rituximab works by destroying cancer cells.