« 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?

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

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

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.

A Whale shark, the world's largest fish, is classified as Vulnerable. A Whale shark, the world's largest fish, is classified as Vulnerable.
Tiger, the largest and heaviest living species of the cat family Tiger, the largest and heaviest living species of the cat family
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in
Jupiter and Its Largest Moons Jupiter and Its Largest Moons
Gorillas are the largest living primates. Gorillas are the largest living primates.
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
Video: Dorsal Recumbent Position

For a complete list of videos, visit our video library