« previous next »
« previous next »
 

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Conduction system of the heart. Conduction system of the heart.
The Heart The Heart
Heart valves in closed position viewed from the top. Heart valves in closed position viewed from the top.
The human chromosome set The human chromosome set
human vs animal hand human vs animal hand
In crocodilians, birds, and mammals, the heart has four chambers: two atria and two ventricles. Oxyg In crocodilians, birds, and mammals, the heart has four chambers: two atria and two ventricles. Oxyg
Video: Deglutition

For a complete list of videos, visit our video library