« previous next »
« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Frequency coding in the nervous system: Threshold stimulus. Frequency coding in the nervous system: Threshold stimulus.
Procedures for Diagnostic Tests Related to the Digestive System Procedures for Diagnostic Tests Related to the Digestive System
In older adults, higher education is related to higher levels of ego development. In older adults, higher education is related to higher levels of ego development.
Graph showing the relationship between the freezing point of the coolant and the percentage of ... Graph showing the relationship between the freezing point of the coolant and the percentage of ...
Preload is related to the amount of blood and stretching of the ventricular myocardial fibers Preload is related to the amount of blood and stretching of the ventricular myocardial fibers
Concepts related to cancer affect the types of cancer Concepts related to cancer affect the types of cancer
Video: Fractures Animation

For a complete list of videos, visit our video library