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Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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.

Single bull elk are vulnerable to predation by wolves. Single bull elk are vulnerable to predation by wolves.
Diagram of a section of a 15th-century oil painting Diagram of a section of a 15th-century oil painting
Microtubules: EM of cilia cross section Microtubules: EM of cilia cross section
Pulmonary embolism. The purple shaded section shows the area of the lung that is dying from lack of ... Pulmonary embolism. The purple shaded section shows the area of the lung that is dying from lack of ...
Viral single-strand DNA (circular) Viral single-strand DNA (circular)
Column of Trajan Column of Trajan
Video: Renal Failure

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