Question

a small blood veasel near the skin surface has a radius of 10um, a length of...

a small blood veasel near the skin surface has a radius of 10um, a length of 1mm and the pressure drop along the blood vessel is 2.5 Pa. The viscosity of blood is 2.7x10-3 N s m-2.
A.) what is the volume flow rate of blood through this blood vessel? what is the velocity of blood flow? Answer F=3.64x10-12m3 s-1 v= 0.012ms-1

B.)vasodilation causes the radius of this blood vessel to increase to 12um, while leaving the pressure drop along the vessel unchanged. What is the volume flow rate through this vessel now? What is the velocity of blood flow?
Answer F= 7.55x10-12m3s-1
v=0.017ms-1
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A small blood vessel near the skin surface has a radius of 10 μm, a length...
A small blood vessel near the skin surface has a radius of 10 μm, a length of 1 μm and the pressure drop along the blood vessel is 2.50 Pa. The viscosity of blood is 0.0027 Pa.s. i. What is the volume flow rate of blood through this blood vessel? What is the velocity of blood flow? [6 marks] ii. Vasodilation causes the radius of this blood vessel to increase to 12 μm, while leaving the pressure drop along the...
A blood vessel is 15 cm long, and has a radius of 4.7 mm. If blood...
A blood vessel is 15 cm long, and has a radius of 4.7 mm. If blood is flowing through it with a volume flow rate of 5 X10-7 m3/s, what is the difference in the pressures at the two ends of the blood vessel? Do NOT assume there is zero viscosity.
A blood vessel is 25 cm long, and has a radius of 2.6 mm. If blood...
A blood vessel is 25 cm long, and has a radius of 2.6 mm. If blood is flowing through it with a volume flow rate of 9 X10-7 m3/s, what is the difference in the pressures at the two ends of the blood vessel? Do NOT assume there is zero viscosity.
The femoral artery in a particular human body has a length of 0.32 m and radius...
The femoral artery in a particular human body has a length of 0.32 m and radius of 3.6 mm. The pressure drop along the artery, from end to end, is approximately 160 P a. Take the viscosity of the blood to be 2.7×10−3 P a.s. The total volume of blood in a typical adult human is about 5.0 liters. How long will it take for the entire amount of blood (5 liters) to pass through the femoral artery? Give the...
The large blood vessel leading from the human heart, the aorta, has an inside diameter of...
The large blood vessel leading from the human heart, the aorta, has an inside diameter of 1.0 cm and a length of 40 cm. The flowing blood (SG = 1.06) has a viscosity of 3.5 CP and an average velocity of 60 cm/s. Find the pressure drop across the aorta, if it is (a) horizontal, (b) vertical with upward flow, and (c) vertical with downward flow.
A small rocket probing the atmosphere has a length of 3 m. It is fired vertically...
A small rocket probing the atmosphere has a length of 3 m. It is fired vertically upward through the atmosphere, its average velocity being 1000 m/s. Consider the flow over the rocket at this average velocity at altitudes of 30,000 and 80,000 m. Can the air flow over the rocket be assumed to be continuous at these two altitudes? At an altitude of 30,000 m, the air has a temperature, pressure, and viscosity of ?55°C, 120 Pa, and 1.5 ×...
A packed bed of particles of density 2500 kg/m3 occupies a depth of 0.5 m in...
A packed bed of particles of density 2500 kg/m3 occupies a depth of 0.5 m in a cylindrical vessel of inside diameter 0.1 m. The mass of solids in the bed is 3 kg. The mean diameter of the particles is 300 μm and the sphericity is 0.67. Water (density 1000 kg and viscosity 0.001 Pa s) flows upwards through the bed. Determine the pressure drop across the bed when being fluidized with water superficial velocity being higher than the...
An intravenous (IV) system is supplying saline solution to a patient at the rate of 0.07...
An intravenous (IV) system is supplying saline solution to a patient at the rate of 0.07 cm3/s through a needle of radius 0.2 mm and length 4.64 cm. What gauge pressure (in Pa) is needed at the entrance of the needle to cause this flow? Assume that the viscosity of the saline solution to be the same as that of water, η = 1.0*10-3 Pa-s, and that the gauge pressure of the blood in the vein is 1500 Pa. Enter...
A small artery has a length of 1.1×10−3m and a radius of 2.5×10−5m . If the...
A small artery has a length of 1.1×10−3m and a radius of 2.5×10−5m . If the pressure drop across the artery is 1.3 kPa, what is the flow rate through the artery? (Assume that the temperature is 37º C.)
An aortic aneurysm is a cardiovascular abnormality where the primary artery supplying blood from the heart...
An aortic aneurysm is a cardiovascular abnormality where the primary artery supplying blood from the heart irregularly increases in size, usually in the abdomen region. Because of the aneurysm, the radius of the aorta of a patient has increased in size as compared to a healthy aorta. The speed of blood through the healthy portion of the aorta 0.34 m/s when the patient is lying flat. The pressure difference due to the increase in artery is 30 Pa Consider the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT