|
|
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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.
Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
Illicit drug use costs the United States approximately $181 billion every year.
![Cystostomy. An artificial opening is made through the urinary bladder wall during this procedure. As](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_21_05_96681734.jpeg)
![Many people consider the British statesman Winston Churchill (1874–1965) to be an exemplar of the ...](https://biology-forums.com/gallery/47/medium_660366_21_03_17_2_37_00_273062316.jpeg)