« previous next »
« previous next »
 

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Peptic ulcer. A peptic ulcer may occur in the stomach (gastric ulcer), as shown here, or in the duod Peptic ulcer. A peptic ulcer may occur in the stomach (gastric ulcer), as shown here, or in the duod
This chart illustrates the “drip down” model of government. In this, politics is formed by the soc This chart illustrates the “drip down” model of government. In this, politics is formed by the soc
Measles rash. (© Lowell Georgia/Science Source/Photo Researchers, Inc.) Measles rash. (© Lowell Georgia/Science Source/Photo Researchers, Inc.)
A common mole (nevus) is not a contraindication for massage. A common mole (nevus) is not a contraindication for massage.
data data
Video: The Lac Operon in E. Coli

For a complete list of videos, visit our video library