« previous next »
« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

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?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Formation of additional eyes in Drosophila caused by the abnormal expression of a master control gen Formation of additional eyes in Drosophila caused by the abnormal expression of a master control gen
Adrenal gland. Adrenal gland.
Hypothalamus and Pituitary Gland Hypothalamus and Pituitary Gland
Other Endocrine Tissues and Organs, Eicosanoids, and Growth Factors Other Endocrine Tissues and Organs, Eicosanoids, and Growth Factors
Development of the Endocrine System Development of the Endocrine System
Phrenology model showing areas of the head overlaying brain regions that control different traits. I Phrenology model showing areas of the head overlaying brain regions that control different traits. I
Video: Cardiac Cycle (Part 4 of 4)

For a complete list of videos, visit our video library