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What is the purpose of the Transcranial Doppler?
A Transcranial Doppler is a test used to test blood flow velocity as is flows through the brains blood vessels. Through emitting a high pitched sound, an ultrasound probe is able to measure the velocity of the blood flow.
Does the velocity of a falling object increase or decrease?
Velocity increases
Differentiate between steady flow and pipe unsteady flow?
The velocity is constant in a steady flow pipe while in the unsteady flow the velocity is not constant.
What is accelaraton?
Is a change in velocity (increase/decrease). It also equals; final velocity-initial velocity divided by time
What is difference between flow rate and flow velocity in flow tubes?
velocity is the speed of the flow (for example, meters/sec.) Flow rate is the volume per unit time (example: liters/sec.)
Why velocity of flow will decrease with increase in peripheral speed of francis turbine?
the peripheral velocity of the turbine is the around velocity. the increase in the velocity of the peripheral will decrease the velocity of the flow towards the turbine
Why does blood pressure in aorta decrease further form heart?
As the blood moves through the aorta, the friction of the walls of the aorta decreases velocity. This velocity decrease results in a decrease in pressure.
What has the most important effect on blood velocity?
Blood viscosity is the most important efect on blood velocity. Viscosity meaning how thin or thick the blood is. Velocity meaning the flow of blood. If the blood is too thick it's velocity will be slow. If the blood is thin, the blood will flow faster.
What is the relationship between cross sectional area of blood vessel and velocity of blood flow in that vessel?
Proceeding downstream from the aorta, branching of arterial vessels increases total cross-sectional area and thus results in diminished velocity of blood flow from the aorta to the capillaries. Velocity increases from the capillaries to the large veins with the confluence of vessels and the resulting decrease in total cross-sectional area. :)
Where the velocity of blood flow is the lowest?
capillaries!
Would vasoconstriction of the renal arteries decrease blood flow to the kidneys?
Yes. If you constrict the afferent arteriole then renal blood flow will decrease.
What is an ultrasound technique used to detect and measure blood-flow velocity?
This technique is a form of Doppler measurement referred to as Blood Flow Imaging (BFI). It can indicate blood flow directionally in addition to measuring velocity.
Velocity of blood flow decreases if?
Viscosity increases
What is Blood doping effect on blood flow?
A large infusion of red blood cells (and resulting increase in cellular concentration) could increase blood viscosity and bring about a decrease in cardiac output, a decrease in blood flow velocity, and a reduction in peripheral oxygen content - all of which would reduce aerobic capacity (#7). The human heart was not designed to pump this thickened blood throughout the body and, therefore, could lead to a multitude of problems.
What is a local decrease in blood flow?
titty sprinkles
The velocity of blood flow is highest in the?
Pulmonary Vein
Why burning velocity decreases with increase in equivalence ratio?
When equivalence ratio increase, the actual air-fuel ratio decrease, which mean the mass flow rate of air is decrease. So, the volume flow rate of air is dercreasing and its mean the velocity is decreasing.
