« previous next »
« previous next »
 

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

A treatment for blocked blood vessels. A treatment for blocked blood vessels.
Blood clot. Blood clot.
Blood glucose monitor. Blood glucose monitor.
Occlusion or narrowing of the carotid artery disrupts blood flow Occlusion or narrowing of the carotid artery disrupts blood flow
Digital rectal examination to detect abnormalities of the prostate gland. Digital rectal examination to detect abnormalities of the prostate gland.
Red, fleshy fruits of hawthorn plants (Crataegus) are an important food for cedar waxwings (Bombycil Red, fleshy fruits of hawthorn plants (Crataegus) are an important food for cedar waxwings (Bombycil
Video: Chemical Buffers - protein buffer, phosphate buffer system and bicarbonate buffer system

For a complete list of videos, visit our video library