Describe the Blood Flow of the Heart
The mandatory increase in coronary blood flow is needed by the myocardium. Explain why our circulatory system including the arteries and blood is essential for our survival.
First the pressure in the atria during diastole is very low often approaching zero when the atria are relaxed atrial diastole.
. If blood is to flow from the veins back into the heart the pressure in the veins must be greater than the pressure in the atria of the heart. 5 With exercise coronary blood flow may rise three- to fourfold to accommodate the increase in MV o 2. The model allows them to demonstrate what happens to blood flow when heart disease narrows a persons arteries.
Describe the cause and effect of obstructed blood flow through plaque buildup in the arteries. Assess flow rates of liquids using a blood flow model. The human heart receives about 120th of cardiac output under basal conditions.
Two factors help maintain this pressure gradient between the veins and the heart. Second two physiologic pumps. Indeed there is an almost perfect linear relation between coronary blood flow and MV o 2.




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