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Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.