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Professions and Applied Sciences
This lesson will discuss Varicose veins: What are they, how do we get them and how are they treated?
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Fat: Part 4 of 4 "Burning the Calories"
This lesson describes the energy molecules of carbohydrate and fat and how they are used in the body.
Cocaine, Antidepressants & the Black Widow Spider: How do they do what they do?
This lesson discusses the neuron, synapse and neurotransmitters, and gives examples of medications and diseases that affect their function.
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.
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