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18Jul/10Off

14. Cardiovascular Physiology (cont.)

Frontiers of Biomedical Engineering (BENG 100) Professor Saltzman describes the blood flow through the systemic and pulmonary circulatory system. More specifically, he describes, with the help of diagrams, the events that lead to blood flow in the body as a function of contraction/relaxation by specific chambers of the heart, and the effect of four valves which help direct flow. Important terms and concepts such as systole/diastole pressures, cardiac output (CO) as a function of heart rate (HR) and ejection volume (EV), and the action potential propagation that stimulates heart muscle contraction are discussed. Complete course materials are available at the Open Yale Courses website: open.yale.edu This course was recorded in Spring 2008.

12Jul/10Off

Ayurvedic Treatment Saves 3 Time Stroke Patient (Part 4)

Contributed by: (www.india-herbs.com) What is a stroke? A stroke is serious - just like a heart attack. A stroke is sometimes called a "brain attack." Most often, stroke occurs when blood flow to the brain stops because it is blocked by a clot. The brain cells in the immediate area begin to die because they stop getting the oxygen and nutrients they need to function. What causes a stroke? There are two kinds of stroke. The most common kind of stroke, called ischemic stroke, is caused by a blood clot that blocks or plugs a blood vessel in the brain. The other kind of stroke, called hemorrhagic stroke, is caused by a blood vessel that breaks and bleeds into the brain. Know the Signs. Act in Time Stroke Symptoms  Sudden numbness or weakness of the face, arm, or leg (especially on one side of the body)  Sudden confusion, trouble speaking or understanding speech  Sudden trouble seeing in one or both eyes  Sudden trouble walking, dizziness, loss of balance or coordination  Sudden severe headache with no known cause Causes of stroke There are two main causes of stroke 1. The most common type of stroke is a blockage. This is called an ischaemic stroke, which happens when a clot blocks an artery that carries blood to the brain. It may be caused by: a cerebral thrombosis, when a blood clot (thrombus) forms in a main artery to the brain; a cerebral embolism, when a blockage caused by a blood clot, air bubble or fat globule (embolism) forms in a blood vessel somewhere else ...

12Jul/10Off

12 Tips for Preventing Heart Disease, Balancing Cholesterol Levels, Lowering High Blood Pressure!

You can optimize your long-term cardiovascular health by: 1) Reversing Damage - Years of stressful living caused damage to your cardiovascular system. To help reverse this, Cardiofy releases hundreds of phytonutrients that act at the molecular level to improve blood circulation, normalize...

8Jul/10Off

What are good foods and vitamins for getting a healthy heart and improving circulation?

Does anyone know what are good foods and vitamins for getting a healthy heart and improving circulation?

6Jul/10Off

What is the maximum amount of vitamin B12 that a person can take daily?

I know I should see a doctor but I can't afford it right now. I have burning feet at night and they're usually sweaty during the day. I also don't feel like my circulation is right. I don't know if an irregular heart beat could be because of this. I'm very fatigued and never feel good. I heard that I might need vitamin B12 so I wanted to try that to see if there is a difference.

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