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Author Question: Dr. Henson is asked to perform an extracapsular cataract extraction for his partner, Dr. Tribble, ... (Read 25 times) |
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
There are approximately 3 million unintended pregnancies in the United States each year.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.