The human circulatory system is closed - that is, the blood pumped out of the left ventricle of the heart into the arteries is constrained to a series of continuous, branching vessels as it passes through the capillaries and then into the veins as it returns to the heart. The blood in each of the hearts four chambers comes briefly to rest before it is ejected by contraction of the heart muscle. The contraction of the left ventricle lasts 250 ms and the speed of blood flow in the aorta (the large artery leaving the heart) is 0.80 m/s at the end of the contraction.

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The human circulatory system is closed - that is, the blood pumped out of
the left ventricle of the heart into the arteries is constrained to a series of
continuous, branching vessels as it passes through the capillaries and
then into the veins as it returns to the heart. The blood in each of the
hearts four chambers comes briefly to rest before it is ejected by
contraction of the heart muscle.
The contraction of the left ventricle lasts 250 ms and the speed of blood
flow in the aorta (the large artery leaving the heart) is 0.80 m/s at the end
of the contraction.
Transcribed Image Text:The human circulatory system is closed - that is, the blood pumped out of the left ventricle of the heart into the arteries is constrained to a series of continuous, branching vessels as it passes through the capillaries and then into the veins as it returns to the heart. The blood in each of the hearts four chambers comes briefly to rest before it is ejected by contraction of the heart muscle. The contraction of the left ventricle lasts 250 ms and the speed of blood flow in the aorta (the large artery leaving the heart) is 0.80 m/s at the end of the contraction.
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