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Blood Clots

Related Article: How Blood Works

Watch this video about blood clots on HowStuffWorks. New research in deep vein thrombosis (DVT) treatment shows that combining a clot-dissolving drug with a clot removal device helps to remove blood clots in the body faster and reduces patient risk for pulmonary embolism and disability. Two million Americans develop DVT each year, a condition widely publicized following the death of NBC correspondent David Bloom in Iraq in 2003. See how blood clots work in this video from MultiVu.

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Blood Clots

Blood Clots (15:48)

Watch this video about blood clots on HowStuffWorks. New research in deep vein thrombosis (DVT) treatment shows that combining a clot-dissolving drug with a clot removal device helps to remove blood clots in the body faster and reduces patient risk... More »

Your Heart and Arteries

Your Heart and Arteries (0:59)

Watch this video about your heart and arteries on HowStuffWorks. Scientists are searching for a gene that causes aneurysms, and what effect it may have on other areas of the heart. Learn about your heart in this video from ScienCentral.

Dangerous Blood

Dangerous Blood (1:47)

Watch this ScienCentral video about the dangers of blood transfusions. Blood transfusions can be a gift of life, but recent studies have revealed that transfusions may be a cause of heart attacks and deaths. Now researchers say they've figured out... More »

Digestive System: Circulatory Systems Role

Digestive System: Circulatory Systems Role (0:37)

Structures in the small intestine absorb nutrients.

Organ Systems: The Circulatory System

Organ Systems: The Circulatory System (1:38)

The circulatory system allows blood to be transported throughout the body. The blood moves from the heart to the lungs to pick up oxygen, then back to the heart to be pumped throughout the body.

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How It's Made: Blood Products

How It's Made: Blood Products (3:01)

Have you ever wondered what becomes of donated blood? This clip from The Science Channel's "How It's Made" follows the blood trail from initial blood testing to creation of the final products.

Cleveland Clinic 2008: LDL Cholesterol

Cleveland Clinic 2008: LDL Cholesterol (1:40)

A new Belgian study indicates that people with higher levels of LDL are at a greater risk of developing serious heart problems. Take a look at this Discovery Health clip to learn more about LDL cholesterol.

Why Tell Me Why: Different Blood Types

Why Tell Me Why: Different Blood Types (2:06)

Have you ever wondered why people have different blood types? Watch this video to find out.

Why Tell Me Why: Red Arteries and Blue Veins

Why Tell Me Why: Red Arteries and Blue Veins (1:27)

Arteries are red because they are transporting oxygenated blood. Veins are blue because they are moving deoxygenated blood. Find out more in this video.

Exploring Time: Heart Beat

Exploring Time: Heart Beat (1:57)

The heart must always keep a steady beat. Learn about the heart and how it functions on The Science Channel's "Exploring Time."

Exploring Time: Virtual Heart

Exploring Time: Virtual Heart (2:40)

See this mathematical model of the heart which responds to whatever is thrown its way. Learn more on this virtual heart on The Science Channel's "Exploring Time."

100 Greatest Discoveries: Blood Transfusion

100 Greatest Discoveries: Blood Transfusion (2:03)

Austrian physician Karl Landsteiner discovered that not all human blood is the same, and that there are four different blood types. Learn more about the beginnings of blood transfusion on the Science Channel's "100 Greatest Discoveries."

100 Greatest Discoveries: Blood Flow Theory

100 Greatest Discoveries: Blood Flow Theory (2:43)

English physician William Harvey's studies on blood flow were breakthroughs in understanding the human heart and the circulatory system. Learn more about blood flow on the Science Channel's "100 Greatest Discoveries."

Systems of the Human Body: Blood and Oxygen

Systems of the Human Body: Blood and Oxygen (2:04)

The circulatory system carries oxygenated blood from the heart (in arteries) to the cells, and oxygen-poor blood is returned to the heart in veins. The oxygen/carbon dioxide exchange occurs in the capillaries.

Systems of the Human Body: Skeletal and Blood Systems

Systems of the Human Body: Skeletal and Blood Systems (2:31)

The function of the skeletal system is to provide support, protect the organs, store minerals and produce blood cells. Blood is composed of red and white blood cells, platelets and plasma. Hemoglobin in the blood transports oxygen to cells in the... More »