Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
Assessing for Phalen's Sign
Assessing for Bulge Sign, Observing for Fluid
Head binding, or artificial deformation, was used by some populations as a sign of identity.
Performing a Spirometry Test to Measure Forced Vital Capacity
Sign on methanol pump shows that methyl alcohol is a poison and can cause skin irritation and other ...
Both Chvostek sign, A, and Trousseau sign, when positive, B