Zebrafish flow of blood in developing embryo
Zebrafish embryo's blood circulates from the brain and through the yolk sac into the heart.
Anterior view of developing Danio with blood cells moving across the yolk and through the two-chambered heart.
Zebrafish tail view
Tail (caudal) view of Danio showing blood flow to and from the posterior end.
Heart Attack in 3-D
This video shows an animation about how a healthy heart works. Once an artery becomes blocked the muscle can't pump properly. Description of a heart attack showing how a blood clot damages coronary tissue. Color animation with sound. (0:47)
Understanding Leukemia In Children
In this video, Dr. Guarini from Columbia University is interviewed and explains what leukemia is and who is most likely to have the disease. Leukemia ia a cancer of the white blood cells. There are two types of leukemia. 4:07 min.
Greatest Discoveries: William Harvey: Blood Flow Theory
Part of Discovery's series "Greatest Discoveries in Medicine". William William Harvey discovers how blood is actually circulated. Run time 02:43.
World War II: Occupation Of Germany - part 1/5
(caution: Scenes of dead bodies and blood.) April 1945 The situation in post-war Europe including the allied occupation of Germany, demobilization, the Nuremburg trials and the genesis of the Cold War. The episode concludes with summations about the ultimate costs and consequences of the war. Interviewees include Charles Bohlen, Stephen Ambrose, Lord Avon, Lord Mountbatten and Noble Frankland.
Screaming Forest, Part 1 of 3
Part 1 of an artfully-crafted wordless art video visually describing the destruction of a natural forest. Set to dramatic music. A blood-red, bowed, beared, downcast human head - with a crown of thorns? - is featured behind the blowing tree limbs and branches. Part 1 ends with a human eye staring in alarm (1:27).
The Oil Spill's Unseen Culprits and Victims
The Gulf oil spill dwarfs comprehension, but we know this much: it's bad. Carl Safina scrapes out the facts in this blood-boiling cross-examination, arguing that the consequences will stretch far beyond the Gulf -- and many so-called solutions are making the situation worse. Carl Safina's writing explores the scientific, moral and social dimensions of our relationship with nature. This speech was given in June of 2010. Run time 19:56.
Video Documentary- In Papua, New Guinea, a group of initiates is about to enter the final stage of a long and arduous ritual. This is a male ritual that leads to manhood. Men's bodies are cut in the patterns of crocodile teeth. (Caution: Cutting and blood are shown.)
The Discovery of Penicillin
In this video segment adapted from A Science Odyssey, learn what led British researcher Alexander Fleming to the chance discovery of antibacterial properties of a mold extract he later named penicillin. After treating World War I battlefield casualties, Fleming began searching for compounds that would ward off infections in humans. Returning from vacation in the summer of 1928, he noticed that mold was partly covering one of the agar plates in which he had been growing bacteria, and that the mol
Red Blood Cells
In this video, the instructor demonstrates and discusses oxygen uptake by hemoglobin in red blood cells. The instructor uses computer software (and different colors for clarification) for demonstration.
A narrated, animated video explaining how the respiratory system works. Some key words include: alveoli, gas exchange, oxygen, carbon dioxide, and red blood cells.Run time 01:31
How the Body Works : The Filtering Mechanism
The filtering mechanism occurs at the Bowman's capsule of each nephron. As blood flows through the glomerular tuft, small molecules are forced through pores in the capillary walls into the nephron. Red blood cells and large protein molecules remain. The filtrate flows down the tubule and is joined by organic wastes and excess salts secreted from surrounding kidney tissues. Most of the glucose, amino acids, vitamins and essential salts are reabsorbed into the blood, leaving a concentrated solutio
How Bacteria Cause Disease
This video demonstrates how bacteria gain entrance to the body. It also explains that when a tissue becomes infected by bacteria, white blood cells migrate to the site of infection and begin to ingest the bacteria. If the white blood cells fail to destroy the bacteria, then the bacteria increase in number. Run time (2:13)
Human Circulation: Blood Pressure
Professor George Wolfe discusses human circulation and blood pressure in this video from Thinkwell's online Biology series. The video uses lecture format along with notes and illustrations on a board. Run time 08:24.
086 - BELLUM HELVETICUM - LOWE BUTLER WALKER
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Hypertension Risk Factors
One in four Americans has high blood pressure. This video examines who has a higher risk for hypertension. 1:04 min.
Reviews the structure and function of the blood vessels. Computer animation and video with narration. Grades 7-12. 2:16.
Circulatory System Structure
3-D animation shows the basic parts of the systemic circulatory system and how blood cells travel through the system. Grades 4-12. 1:08 min.