« previous next »
« previous next »
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

The ovaries. In addition to producing ova, the ovaries secrete the female sex hormones, estrogen and The ovaries. In addition to producing ova, the ovaries secrete the female sex hormones, estrogen and
Each of the eight injectors shown are producing a correct spray pattern for the applications. While ... Each of the eight injectors shown are producing a correct spray pattern for the applications. While ...
This label on a Toyota Camry hybrid shows the relative smog-producing emissions, but this does not ... This label on a Toyota Camry hybrid shows the relative smog-producing emissions, but this does not ...
Core Areas in Preindustrial Europe Core Areas in Preindustrial Europe
Average Annual Growth Rates of Population by Country Group Average Annual Growth Rates of Population by Country Group
Port-wine stain (nevus flammeus) Port-wine stain (nevus flammeus)
Video: Definition of heart rate

For a complete list of videos, visit our video library