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By definition, when a medication is administered intravenously, its bioavailability is 100%.
There are more sensory neurons in the tongue than in any other part of the body.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
There are more nerve cells in one human brain than there are stars in the Milky Way.
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