Question

Consider a healthy artery, with blood flow velocity of 0.14m/s and density of ρ=1050kg/m3. Suppose that...

Consider a healthy artery, with blood flow velocity of 0.14m/s and density of ρ=1050kg/m3.
Suppose that plaque has narrowed an artery to one-fifth of its normal cross-sectional area (an
80% blockage). Treat the blood as a completely ideal fluid (no viscosity)
A) What will be the velocity of the blood through the blockage?
B) How much will the pressure in the blood change as it passes through the blockage?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

(a)

Use continuity equation

A1v1 = A2v2

A1 * 0.14 = 1/5 * A1 * v2

0.14 = 1/5 * v2

v2 = 0.7 m/s

_____________

(b)

change in pressure at blockage site

P = - ( / 2) ( v22 - v12)

P = - (1050 / 2) ( 0.72 - 0.142)

P = - 247 Pa

this means there is dangerous drop in pressure and can lead to serious complications.

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
An artery in a human body can be narrowed down by an arteriosclerotic plaque, causing heart...
An artery in a human body can be narrowed down by an arteriosclerotic plaque, causing heart problems. Suppose one segment of a horizontal artery is narrowed down to 1/4 of its normal cross-sectional area. The blood flows at 0.166 m/s in a healthy segment. Assume that blood is an incompressible and non-viscous fluid. (a) At what rate does the blood flow in the constricted segment? (b) By how much does the pressure increase in the constricted segment relative to the...
5. The blood speed in a normal segment of a horizontal artery is 0.10 m/s. An...
5. The blood speed in a normal segment of a horizontal artery is 0.10 m/s. An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to one-fourth the normal cross-sectional area. What is the difference in blood pressures between the normal and constricted segments of the artery? (The density of the blood is 1060 kg/m³)
A medical technician is trying to determine what percentage of a patient's artery is blocked by...
A medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is 1.20×104 Pa , while in the region of blockage it is 1.15×104 Pa . Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at 30.0 cm/s , and the specific gravity of this patient's blood...
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...
A flow of whole milk at 293 K with a density of 1030 kg / m3...
A flow of whole milk at 293 K with a density of 1030 kg / m3 and viscosity of 2.12 cP, passes through a pipe at the speed of 0.605 kg / s through a glass pipe of 63.5mm in diameter. a) Calculate the Reynolds number. Is the flow turbulent? b) Calculate the flow velocity in m3 / s needed for a Reynolds number of 2100 and speed in m / s.
A common cause of cardiovascular disease is atherosclerosis, the hardening and narrowing of arteries due to...
A common cause of cardiovascular disease is atherosclerosis, the hardening and narrowing of arteries due to a buildup of plaque. For instance, significant narrowing in the coronary arteries, which bring oxygenated blood to the heart, can produce symptoms such as chest pain, dizziness, and breathlessness. By NIH: National Heart, Lung and Blood Institute [Public domain], via Wikimedia Commons 1) The chart provides typical values for blood flow through a coronary artery. Calculate the pressure drop across this artery. Density (blood)...
A liquid of density 860 kg/m3 flows through a horizontal pipe that has a cross-sectional area...
A liquid of density 860 kg/m3 flows through a horizontal pipe that has a cross-sectional area of 1.40 x 10-2 m2 in region A and a cross-sectional area of 9.40 x 10-2 m2 in region B. The pressure difference between the two regions is 6.10 x 103 Pa. What are (a) the volume flow rate and (b) the mass flow rate? p.s. please box the final answers.
A fluid of viscosity 0,002 N-s /m2 and density 1000 kg/m3 flows with an average speed...
A fluid of viscosity 0,002 N-s /m2 and density 1000 kg/m3 flows with an average speed of 1 m/s in a 2 cm-diameter horizontal smooth pipe . Calculate a)magnitude of shearing stress at the pipe wall. b) shear stress velocity of flow c) magnitude of pressure gradient to induce flow
A venturi meter is a device for measuring the speed of a fluid within a pipe....
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0800 m2. The gas has a density of ρ = 1.70 kg/m3. The Venturi meter has a cross-sectional area of A1 = 0.0500 m2 and has been substituted for a section of the larger pipe. The pressure difference between the sections is P2...
1, What does a blood pressure of 120/70 tell you? (A) At the end of ventricular...
1, What does a blood pressure of 120/70 tell you? (A) At the end of ventricular diastole, the left ventricle generates 70 mmHg (B) During atrial systole, the left ventricle generates 120 mmHg (C) During sympathetic activation, the elastic arteries generate 120 mmHg (D) During ventricular systole, the left ventricle generates more than 120 mmHg (E)The aortic semilunar valve closes when aortic pressure reaches 120 mmHg 2.What is responsible for pushing fluid out across the capillary wall into the interstitial...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT