9) The aortic valve is located at the base of the aorta and controls the flow of

Question

9) The aortic valve is located at the base of the aorta and controls the flow of blood from the left ventricle of the heart into the
aorta. The valve has an area of about 4.0 cm2 when closed (there are variations in this area from person to person). The aortic valve closes just before the diastolic phase of the cardiac cycle at which point the blood pressure is at about 94 mm Hg. calculate the force exerted on the aortic valve by the blood in the left ventricle The force will be in Newtons.

Answer:

Explanation / Answer

Given that

blood pressure is P = 94 mm Hg and A = 4*10^-4 m^2

P = 94*133.322 =12532.268 Pa

Force is F = P*A = 12532.268*4*10^-4 = 5 N

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