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Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Did you know?
The horizontal fraction bar was introduced by the Arabs.