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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.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Wood first appeared in plants called progymnosperms. Wood first appeared in plants called progymnosperms.
Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia
Renal calculi (stones) can form in several areas within the urinary tract. When they form in the kid Renal calculi (stones) can form in several areas within the urinary tract. When they form in the kid
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Some ignition coils are electrically connected, called married (top figure), whereas others use ... Some ignition coils are electrically connected, called married (top figure), whereas others use ...
Corbel Vault, Interior of Tholos, The So-called Treasury of Atreus Corbel Vault, Interior of Tholos, The So-called Treasury of Atreus
Video: Double Stranded DNA Molecule Animation

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