« previous next »
« previous next »
 

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Structures of the respiratory tract. Structures of the respiratory tract.
Digestive system. Digestive system.
The lower respiratory tract The lower respiratory tract
The digestive system The digestive system
Relationship between the pancreas and the digestive system. Relationship between the pancreas and the digestive system.
Organic obstructions of the intestinal tract. Organic obstructions of the intestinal tract.
Video: Major Elements in Biological Molecules: Lipids

For a complete list of videos, visit our video library