« previous next »
« previous next »
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

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.

Flower part number is a characteristic difference between monocots and eudicots Flower part number is a characteristic difference between monocots and eudicots
Abduction and Adduction Abduction–Moving a body part away from the middle. Adduction–Moving a body p Abduction and Adduction Abduction–Moving a body part away from the middle. Adduction–Moving a body p
Adolescents are preoccupied with finding their place in the social group as well as society. Adolescents are preoccupied with finding their place in the social group as well as society.
Social class and social status Social class and social status
Soil is a crucial part of the nitrogen cycle Soil is a crucial part of the nitrogen cycle
Annotation of a DNA sequence containing part of the human beta-globin gene Annotation of a DNA sequence containing part of the human beta-globin gene
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library