How does plaque affect pressure in an artery?

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In summary, artery plaque is a buildup of fatty deposits, cholesterol, calcium, and other substances in the inner lining of an artery. It forms when there is damage to the artery and can be prevented by maintaining a healthy lifestyle and managing underlying health conditions. Treatment options include lifestyle changes, medication, and medical procedures.
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Homework Statement



Blood is a viscous fluid. If due to plaque, the cross-sectional area of an artery is reduced by a factor 4 over a segment with a length of 1.5 cm, approximately by what factor would the pressure difference between both ends of this segment need to be increased in order to maintain the same flow?

Homework Equations


P=pgh


The Attempt at a Solution



Doesn't only height matter and not the cross-sectional area? Any help is greatly appreciated!
 
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  • #2
nevermind, got it!
 

1. What is artery plaque?

Artery plaque, also known as atheroma or atherosclerotic plaque, is a buildup of fatty deposits, cholesterol, calcium, and other substances in the inner lining of an artery. This can lead to narrowing and hardening of the artery, potentially causing health problems such as heart disease and stroke.

2. How does artery plaque form?

Artery plaque forms when there is damage to the inner lining of an artery, typically from high blood pressure, high cholesterol, and smoking. This damage allows fatty deposits and other substances to accumulate in the artery, leading to plaque formation.

3. What is the role of pressure in artery plaque?

Pressure, specifically high blood pressure, can contribute to the formation of artery plaque. When blood pressure is consistently high, it can damage the inner lining of arteries, making it easier for plaque to build up and harder for the body to repair the damage.

4. How can artery plaque be prevented?

To prevent artery plaque, it is important to maintain a healthy lifestyle by eating a balanced diet, exercising regularly, and not smoking. It is also important to manage any underlying health conditions, such as high blood pressure and high cholesterol.

5. Can artery plaque be treated?

Yes, artery plaque can be treated. Lifestyle changes, such as those mentioned above, can help slow or even reverse the progression of plaque buildup. In more severe cases, medication or medical procedures, such as angioplasty or bypass surgery, may be necessary to remove or bypass the plaque.

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