A blood vessel carries blood with a viscosity equal to 0.0035 Pa.s. If the vessel has a radius equal to 1 mm and a length equal to 5 mm, what is its resistance in PRU? solve in PRU (b) The vessel from part (a) is connected in series to a second vessel with a resistance equal to 0.250 PRU. What is the total resistance of the two vessels? solve in PRU (c) If the pressure across the two vessels is 20 mmHg, what is the flow rate through the vessel, in ml/s? solve in ml/s (d) What is the pressure drop across the second vessel? solve in mmHg (e) If the pressure on the exit side of the second vessel is 0 mmHg, what is the pressure at the junction of the two vessels? solve in mmHg
A blood vessel carries blood with a viscosity equal to 0.0035 Pa.s. If the vessel has...
Consider a 4-mm diameter blood vessel and two 2-mm diameter blood vessels. Assuming pressure, viscosity, and vessel length are constant, would the two 2-mm vessels have more, less, or the same amount of fluid flow as the 4-mm diameter blood vessel? Explain using the proper equation, showing your work and using proper units.
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5 A Small blood vessel near the skin has a radius of 10-5 m and length of 1 mm. The pressure drop along the blood vessel is 2.5 Pa. The viscosity of the blood is 2.5 x 10-3 Pa.s. The volume flow rate of blood through this blood vessel is A) 4.17 x 10-4m3/s B) 1.83 x 10-15m3/s C) 3.93 x 10-15m3/s D) 6.25 x 10-"m3/s
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7B.9 (P, C) There is a pressure drop from the left side to the right side of the heart. (a) What is the magnitude of this pressure drop? (b) As the blood moves through the body, the pressure drops due to vas- cular resistance, or peripheral resistance, which is the friction of the blood along the vessel wall. What is...
In hemodynamics, blood flow through the cardiovascular system
can be modeled as an electric circuit in which the blood serves as
electricity, the blood vessels as resistive wires, and the heart as
a battery (see Figure 1).
Figure 1 Cardiovascular circuit model
Ohm’s law states that the voltage drop ΔV across each element,
the current I flowing through it, and its electrical
resistance R are related by ΔV = IR. In a blood vessel, pressure
difference between one vessel and...
Blood flow is 83 mL/sec through each capillary. B.) The blood pressure difference across a capillary is 20 mmHg. Assuming that a capillary is about 7um in diameter on average, and that the viscosity of blood is 0.04 poise, calculate the theoretical length of a capillary. C.) The length of a capillary can be measure directly with a microscope and it usually ranges from 0.3 to 1.0 mm. Let us assume that the average length of a capillary is 0.65...
A.) The blood low out of the heart is about 83 mL/sec. Assuming that the blood flows equally through all capillaries, estimate the blood flow through each capillary. B.) The blood pressure difference across a capillary is 20 mmHg. Assuming that a capillary is about 7um in diameter on average, and that the viscosity of blood is 0.04 poise, calculate the theoretical length of a capillary. C.) The length of a capillary can be measure directly with a microscope and...
The viscosity of blood is 2.10 × 10−3 Pa⋅s. * What is the pressure difference required to make blood flow through an artery of inner radius 2.00 mm and length 0.200 m at an average speed of 5.28 cm/s? ___ Pa * Blood flows through an artery of inner radius 2.00 mm and length 0.200 m at an average speed of 5.28 cm/s. What is the ratio of the pressure difference required to make blood flow through this artery to...
A section of blood vessel wall has become weakened resulting in an increase in the vessel wall diameter of 32%. For this question treat blood as an incompressible non viscous fluid of density 1050 kg m−3. If the vessel normally carries blood at a speed of 1.2 m s−1 then what is the magnitude of the increase in pressure in the bulge in the blood vessel? (to 2 s.f and in Pa)
Motor oil, with a viscosity of 0.250 Ns/m2 is flowing through a tube that has a radius of 5.0 mm and is .25 cm long. The drop in pressure is 300 kPa. What is the volume of oil flowing through the tube per second?
21.3 HEMODYNAMICS: FACTORS AFFECTING BLOOD FLOw 815 proteins in plasma. The higher the blood's viscoily.the higher the resistance. Any condition that increases the visoityo ch as dehydration or polycythemia (an onosual -A hlood cellis), thus increases blood pressun blood presssure has dropped to about in blood cells, dac to a whose weight is 160 pounds has a total length of blood vessels equal to 70,000 miles. If he ains 1 pound of fat, his fat tissue will grow an extra...