« previous next »
« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

An open circulatory system. An open circulatory system.
A shed carapace of a lady crab, part of the hard exoskeleton A shed carapace of a lady crab, part of the hard exoskeleton
Lymphatic system. Lymphatic system.
Understanding the Solar System Understanding the Solar System
How to solve any rational equation by finding the lowest common denominator (Part 2) How to solve any rational equation by finding the lowest common denominator (Part 2)
The Excretory System Water and waste products from cells The Excretory System Water and waste products from cells
Video: Multiple Sclerosis Animation

For a complete list of videos, visit our video library