« previous next »
« previous next »
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

The transcription of three different genes that are found in the same chromosome. The transcription of three different genes that are found in the same chromosome.
Evolution of Nervous Systems Evolution of Nervous Systems
Vesalius’s De Humani Corporis Fabrica was an important early work on the human species. Vesalius’s De Humani Corporis Fabrica was an important early work on the human species.
The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v The Sleep/Waking Flip-Flop According to Saper et al. (2001), the major sleep-promoting region (the v
Global Pressure Systems and Wind Patterns Global Pressure Systems and Wind Patterns
Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia). Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia).
Video: Humerus Adduction Animation

For a complete list of videos, visit our video library