Describe how calcium and ATP are involved in muscle contraction.
Ask unlimited questions for free
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
If you could remove all of your skin, it would weigh up to 5 pounds.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
For a complete list of videos, visit our video library