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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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