« 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?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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.

Wisdom teeth X-ray Wisdom teeth X-ray
Slit lamp examination. Slit lamp examination.
Inspecting a patient’s ear during a physical examination. Inspecting a patient’s ear during a physical examination.
PEPCK isozymes provide alternative routes to PEP and cytoplasmic reducing equivalents PEPCK isozymes provide alternative routes to PEP and cytoplasmic reducing equivalents
Parent restraint of a young child during examination of the ear Parent restraint of a young child during examination of the ear
Structure and function of human teeth. Structure and function of human teeth.
Video: HIV Infection: Viral life cycle

For a complete list of videos, visit our video library