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Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.