Questions Question 1. Equation 1: Mean Arterial Blood Pressure = Cardiac Output X Total Peripheral Resistance Â Â Equation 2:...

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Question 1.
Equation 1: Mean Arterial Blood Pressure = Cardiac Output XTotal Peripheral Resistance
Â Â Equation 2: Blood Flow = Î” Blood Pressure /Resistance
If you increase the radius of a blood vessel this leads to adecrease in the resistance to blood flow along that blood vessel.If the difference in blood pressure between the beginning and theend of this blood vessel does not change, then according toequation 2, blood flow should increase.
But, equation 1 suggests that if you decrease resistance thenyou should decrease blood pressure. According to equation 2, if youdecrease blood pressure then blood flow should decrease.
Therefore, there appears to be a conflict between the twoequations with a decrease in resistance (equation 2) leading to anincrease in blood flow but also leading to a decrease in bloodpressure (equation 1) which should, in turn, lead to a decrease inblood flow (equation 2). However, there is no conflict. Thinkcarefully about what the two equations represent and indicate whythis apparent conflict does not exist.

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3.8 Ratings (588 Votes)

Blood flow refers to the movement of blood through a vessel tissue or organ and is usually expressed in terms of volume of blood per unit of time Blood pressure is the force exerted by the blood upon the walls of the blood vessels or the chambers of the heart Arterial Blood Pressure is the pressure of blood flowing in the arteries See Answer

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