« previous next »
« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Human embryonic stem cells stained with Tra-1-60 (green) - a stem cell marker and nestin (red), a ne Human embryonic stem cells stained with Tra-1-60 (green) - a stem cell marker and nestin (red), a ne
Human neural stem cells derived from hESCs, engineered to over-express Olig2 Human neural stem cells derived from hESCs, engineered to over-express Olig2
A sidewheeler on the Mississippi. In 1856 Samuel Clemens became an apprentice to a steamboat pilot a A sidewheeler on the Mississippi. In 1856 Samuel Clemens became an apprentice to a steamboat pilot a
Temperature Ranges for Human Survival Temperature Ranges for Human Survival
The mesotelencephalic dopamine system in the human brain, consisting of the nigrostriatal pathway ... The mesotelencephalic dopamine system in the human brain, consisting of the nigrostriatal pathway ...
Soil is a crucial part of the nitrogen cycle Soil is a crucial part of the nitrogen cycle
Video: Structures that affect circulation - venous return

For a complete list of videos, visit our video library