Mindblown: a blog about philosophy.
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Black widow spider
The female of Latrodectus mactans. It is native to the southern U.S. but has been reported throughout the country. It prefers to live in woodpiles and other locations where it is well hidden. It is glossy black with a brilliant red spot, usually shaped like an hourglass or two triangles, on the undersurface of the…
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Spider
An arachnid, belonging to the order Araneae, class Arachnida, phylum Arthropoda. The body is divided into cephalothorax and abdomen joined by a narrow waist. A spider usually possesses four pairs of legs as well as poison fangs. It often possesses spinnerets. A frying pan, or skillet, made of cast-iron and formerly equipped with three lengthy…
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Spiculed red cell
Crenated red blood cells with surface projections. In most instances, this is a normal variation in red cell equilibrium and is reversible.
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Cemental spicule
An excementosis or pointed protuberance extending from the surface cementum of a tooth root.
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Sphygmometer
An instrument for measuring the pulse.
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Sphygmography
Recording the arterial pulse by use of a polygraph. A tool utilized for creating pulse recordings. The documentation of pulse patterns.
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Sphygmogram
A tracing of the pulse made by using the sphygmograph. The pattern generated by the sphygmograph.
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Sphygmobolometer
A device used to measure the force of the pulse rather than the blood pressure.
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Sphingomyelins
A major group of phosphorus-containing sphingolipids. They are found primarily in nervous tissue and in lipids in the blood. They are derived from choline phosphate and a ceramide. Deficiencies in sphingomyelin manufacturing are found in many diseases.
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Sphingolipodystrophy
A group of diseases caused by defective sphingolipid metabolism.
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