« previous next »
« previous next »
 

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

An adult male killer whale with its characteristic tall dorsal fin swims in the waters near Tysfjord An adult male killer whale with its characteristic tall dorsal fin swims in the waters near Tysfjord
The pubic symphysis of the pelvis is useful for estimating age in the adult skeleton. The pubic symphysis of the pelvis is useful for estimating age in the adult skeleton.
Position of hands for chest compression on an adult. Position of hands for chest compression on an adult.
Perform Adult Rescue Breathing and One-Rescuer or Two-Rescuer CPR Perform Adult Rescue Breathing and One-Rescuer or Two-Rescuer CPR
Typical Night’s Sleep for a Young Adult Typical Night’s Sleep for a Young Adult
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library