« previous next »
« previous next »
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

An example of sodium balance achieved by the coordinated actions of three hormones. An example of sodium balance achieved by the coordinated actions of three hormones.
Synthesis of the amine hormones dopamine, norepinephrine, and epinephrine. Synthesis of the amine hormones dopamine, norepinephrine, and epinephrine.
Hormonal control of the male reproductive hormones Hormonal control of the male reproductive hormones
Selected Hormones and Their Regulation Selected Hormones and Their Regulation
The endocrine glands and their hormones. The endocrine glands and their hormones.
This severely corroded water pump could not circulate enough coolant to keep the engine cool. As a ... This severely corroded water pump could not circulate enough coolant to keep the engine cool. As a ...
Video: Anatomy and Chemical Makeup of a Single Hair (Animation)

For a complete list of videos, visit our video library