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Author Question: What does the acronym ROS mean? a. Review of Symptoms b. Random Order of Systems c. Review of ... (Read 70 times) |
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.