« previous next »
« previous next »
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Platycnemididae are a family of damselfly called white-legged damselflies. Platycnemididae are a family of damselfly called white-legged damselflies.
Cataract extraction. The procedure involves a surgical removal of a cataract lens and its replacemen Cataract extraction. The procedure involves a surgical removal of a cataract lens and its replacemen
The dance language of bees The dance language of bees
Socrates (470–399 B.C.E.) was an Ancient Greek philosopher often called the "father of ... Socrates (470–399 B.C.E.) was an Ancient Greek philosopher often called the "father of ...
Some clues about the importance of language experience come from the tragic case of Genie, a girl ... Some clues about the importance of language experience come from the tragic case of Genie, a girl ...
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ... Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
Video: Structures that affect circulation - arterioles and vasomotor responses

For a complete list of videos, visit our video library