Heart attack and Bernoulli's principle.

Blood Flow and Heart Attack

Bernoulli’s principle says that the sum of potential,kinetic and pressure energy per unit mass of a incompressible,non viscous fluid remains constant.

Bernoulli's Principle states that the faster a fluid moves, the lower the pressure of the fluid.

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. This happens because of high cholesterol intake. In order to drive the blood through this constriction a greater demand is placed on the activity of the heart.

We know if the cross sectional area decreases, the velocity of the blood will increase.

The speed of the flow of the blood in this 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.