« previous next »
« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

The Endomembrane System 1 The Endomembrane System 1
The Solar System The Solar System
Jets Created by a Black Hole in a Binary System Jets Created by a Black Hole in a Binary System
Pathways of the Auditory System Pathways of the Auditory System
Go! All in One: Computer Concepts and Applications (2nd Edition) Go! All in One: Computer Concepts and Applications (2nd Edition)
Main components of the human endocrine system and the effects of their secretions Main components of the human endocrine system and the effects of their secretions
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

For a complete list of videos, visit our video library