« previous next »
« previous next »
 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Brain, spinal cord, and spinal nerves with an expanded view of a spinal nerve. Brain, spinal cord, and spinal nerves with an expanded view of a spinal nerve.
Some ion pairs that stabilize the T state of deoxyhemoglobin Some ion pairs that stabilize the T state of deoxyhemoglobin
Interactions between these ion pairs, and between others Interactions between these ion pairs, and between others
muscles nerves bones muscles nerves bones
Symptoms and Signs Associated with Damage to Nerves in Different Areas of the Spinal Column Symptoms and Signs Associated with Damage to Nerves in Different Areas of the Spinal Column
Cranial nerves and their target regions. (Sensory nerves are shown in blue; motor nerves, in red.) Cranial nerves and their target regions. (Sensory nerves are shown in blue; motor nerves, in red.)
Video: Diversity of Living Creatures - Charles Darwin & the Beagle's Voyage

For a complete list of videos, visit our video library