« previous next »
« previous next »
 

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?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

A male and female fat-tailed gerbil (Pachyuromys duprasi) A male and female fat-tailed gerbil (Pachyuromys duprasi)
Calopteryx virgo male Calopteryx virgo male
External and internal male genitalia. External and internal male genitalia.
Ultrasonogram showing a male fetus. Ultrasonogram showing a male fetus.
In the reaction C(s) + O2(g) CO2(g) carbon is __________. In the reaction C(s) + O2(g) CO2(g) carbon is __________.
Threat Display: Male Collared Lizard Threat Display: Male Collared Lizard
Video: Neuron Type Animation

For a complete list of videos, visit our video library