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Vasodilation and decreasing blood viscosity
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How does blood viscosity affect blood flow?
Peripheral resistance
What is the relationship between peripheral resistance and blood pressure?
Systolic BP is a measure of blood pressure while the heart is pumping; diastolic BP is a measure of blood pressure while the heart is not pumping. BP is the pressure of the blood on the walls of the blood vessels.
A resistance to blood flow due to friction between blood and blood vessel walls is called what?
it is called peripheral resistance.
What would decreased peripheral resistance to blood flow?
Vasodilation and decreasing blood viscosity
Would vasoconstriction decrease peripheral resistance?
No, vasoconstriction would increase peripheral resistance. When blood vessels constrict, the diameter of the blood vessels becomes smaller, which increases resistance to blood flow. This can lead to an increase in blood pressure.
Is blood flow inversely proportional to resistance?
Yes, blood flow is inversely proportional to resistance in the cardiovascular system. When resistance increases, blood flow decreases, and vice versa. This relationship is governed by Poiseuille's Law.
Decreased peripheral resistance to blood flow?
Decreased peripheral resistance to blood flow is typically associated with vasodilation, which occurs when the smooth muscle in blood vessel walls relaxes. This can lead to increased blood flow to tissues and decreased blood pressure. Vasodilation can be caused by factors such as the release of nitric oxide or certain medications.
What three variables affect peripheral resistance to blood flow?
Resistance is determined by three properties: the lengthand cross-sectional area of a material, and its resistivity. Since resistivity is affected by temperature, you could say that temperature indirectly affects resistance.
What is blood flow directly proportional to?
Blood flow is directly proportional to blood pressure, vessel diameter, and heart rate. When these factors increase, blood flow also increases, and vice versa.
What factors influences resistance to blood flow in the arteries?
resistance occurs as the blood flows away from heart through the vessels in the peripheral systemic circulation a term known as peripheral resistance. Viscosity of the blood (thickness) ,vessel length (distance) and vessel diameter (blood vessel radius) are three factors
What is the site that is major determine peripheral resistance?
The major site that determines peripheral resistance is the arterioles. These small-diameter blood vessels can constrict or dilate to regulate blood flow and pressure throughout the circulatory system. Their ability to change diameter significantly influences total peripheral resistance, impacting overall cardiovascular function.
How do peripheral vasodilators work?
Peripheral vasodilators work by relaxing the smooth muscle in the walls of blood vessels, which causes them to dilate and widen. This leads to a decrease in resistance to blood flow, resulting in increased blood flow to the peripheral tissues. This can help reduce high blood pressure and improve circulation.
