« previous next »
« previous next »
 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Immortal HeLa Cells Immortal HeLa Cells
Cancer Growth and Metastasis Cancer Growth and Metastasis
Gap junctions. Gap junctions connect the cytoplasm of two adjacent cells. In the mammalian brain, ... Gap junctions. Gap junctions connect the cytoplasm of two adjacent cells. In the mammalian brain, ...
Semipermanent Pressure Cells Semipermanent Pressure Cells
Staphylococcus aureus cells (yellow) stuck in mucus secreted by human nasal epithelial cells. Staphylococcus aureus cells (yellow) stuck in mucus secreted by human nasal epithelial cells.
Lederberg and Tatum’s detection of recombination between auxotrophic E. coli cells Lederberg and Tatum’s detection of recombination between auxotrophic E. coli cells
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library