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Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

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There are approximately 3 million unintended pregnancies in the United States each year.

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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

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Video: Cellular defenses (natural killer cells, phagocyte types & process of phagocytosis)

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