Mindblown: a blog about philosophy.
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Ruga of vagina
One of the small ridges on the inner surface of the vagina extending laterally and upward from the columna rugarum (long ridges on the anterior and posterior walls).
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Palatal ruga
One of the folds of the mucous membrane of the roof of the mouth.
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Ruga
A fold or crease, especially one of the folds of mucous membrane on the internal surface of the stomach.
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Ruffini’s corpuscle
One of the encapsulated sensory nerve endings found in the dermis and subcutaneous tissue, once thought to mediate the sense of warmth, now believed to be a pressure receptor.
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Rubrospinal
A small bundle of nerve fibers in the lateral funiculus of the spinal cord. Fibers arise in the cells of the red nucleus of the midbrain and terminate in the ventral horn of the gray matter.
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Rubner’s laws
Law of constant energy consumption: rapidity of growth is proportional to intensity of the metabolic process.
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Rubeosis iridis
A condition in which new blood vessels form on the anterior surface of the iris. Neovascularization is associated with diabetic retinopathy and central retinal vein occlusion. It can lead to neovascular glaucoma that is difficult to treat.
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Rubella titer
A blood test to determine a person’s immune status to rubella.
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Pleural friction rub
The creaking, grating sounds made when inflamed pleural surfaces move during respiration. It is often heard only during the first day or two of a pleurisy.
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Pericardial rub
The scratchy, leathery, or rasping sound heard when inflamed visceral and parietal surfaces move over each other. The sound may be heard when listening to the heart sounds of patients with pericarditis.
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