« previous next »
« previous next »
 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Bobcat in the front yard of a residence in Southern California Bobcat in the front yard of a residence in Southern California
A tracheotomy tube in place, inserted through an opening in the front of the neck and anchored withi A tracheotomy tube in place, inserted through an opening in the front of the neck and anchored withi
Rinne test: A. Place the base of the tuning fork on the mastoid process. B. Place tuning fork in fro Rinne test: A. Place the base of the tuning fork on the mastoid process. B. Place tuning fork in fro
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
Martha Rosler, Gladiators, from the series House Beautiful: Bringing the War Home. 2004 Martha Rosler, Gladiators, from the series House Beautiful: Bringing the War Home. 2004
Ludwig Mies van der Rohe, Farnsworth House, Fox River, Plano, Illinois. Ludwig Mies van der Rohe, Farnsworth House, Fox River, Plano, Illinois.
Video: How antibiotics works? 💊

For a complete list of videos, visit our video library