Explain blood flow and heart attack with the help of Bernoulli’s principle.

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Bernoulli's principle helps in explaining blood flow in artery.

The artery may get constricted due to the accumulation of plaque on its inner walls.

The speed of the flow of the blood in this constriction region is raised which lowers the pressure inside and the artery may collapse due to the external pressure.

The heart exerts further pressure to open this artery and forces the blood through.

As the blood rushes through the opening, the internal pressure once again drops.

Due to same reasons leading to a repeat collapse this may result in heart attack.

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