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Professions and Applied Sciences
This video considers blood pressure. When ventricles contract, they increase pressure on the blood. The resulting force that blood exerts against the artery walls is called blood pressure.
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Valves of the Heart
This video discusses the anatomy of the heart in particular the 4 valves. These flaps of tissue prevent blood from flowing backward. The valves are located between the atria and the ventricles, and also leading from the heart.
Fat: Part 3 of 4 "Fueling Up"
Describes how we transfer energy from one animal or plant to another. Also discusses the gastrointestinal tract and its role in the break down and transport of triglycerides and fat via the bowel, portal vein, liver and fat cells. Finally, the video provides an explanation of a high serum triglyceride level and its effect on health.
MRI: Basic Physics & a Brief History
This lesson describes the basic physics of Nuclear Magnetic Resonance and relevant terms such as T1 & T2 relaxation, pulse sequence, frequency and phase encoding, T1WI and T2WI. Introduces the landmark papers of Drs. Damadian and Lauterbur that made magnetic resonance imaging a reality.
Fat: Part 1 of 4 "Free Fatty Acids and Triglycerides"
Describes the basic biochemistry of the energy storing molecule, the free fatty acid and it's storage form in plants and animals, the triglyceride.
Blood flows throughout the body via blood vessels. These are the tubes that form a closed pipeline within the body. There are three types of vessels and this video discusses their structure and function.
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