Answered: Cocaine use causes vasoconstriction.…

Cocaine use causes vasoconstriction. Explain how does vasoconstriction affect blood pressure. Show the relationship by relating it to Poiseuille’s equation.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter9: Solids And Fluids

Section: Chapter Questions

Problem 45P

See similar textbooks

Related questions

Q: Why is the density of frozen food less compared to that of unfrozen food?

A: Why is the density of frozen food less.

Q: YUUI dilSWel Q1/ In both inspiration and expiration, a pressure difference of 0.4 cm H2O causes a…

A: " As per the guidelines i solved the first question alone". Q1 The airway resistance is, Rg=∆p…

Q: Vital capacity means the ability of the lung to deal with the air either with .normal or under…

A: Option b

Q: What physical characteristic distinguishes a fluid from a solid?

A: Given: Fluid andsolid

Q: Illustrate how the branching of a tubular structure influences the velocity ofthe branching of a…

A: To determine: Explain how the branching of tubular structure will influence the velocity of fluid…

Q: Flow rate question: You are asked to help educate a patient on ramifications of a partial arterial…

A: The rate of flow of liquid is given by where, p is the pressure, r is the radius, l is the length.

Q: how does gas pressure keep tires inflated?

A: pressure keep tires inflated because of Unlike pneumatic tires which use a separate inner tube,…

Q: Is the capillary rise greater in small- or large-diameter tubes?

A: Capillary rise is greater in the small diameter tube.

Q: The radius of the aorta is about 1.1 cm , and the blood passing through it has a speed of about 45…

Q: The radius of the lumen of the blood vessel decreased by 2.4%. Determine the ratio of the resulting…

Q: How do errors in measuring the length and radius of a blood vessel affect the calculation of its…

A: Let the length of the blood vessel is denoted by r and its length is denoted by l. The volume of the…

Q: The volume flow rate in an artery that supplies blood to the brain is 3.60 x 10-6 m/s. If the…

A: (A)We are given Q1=3.6*10-6 m3/s A1=8.0*10-5 m2 also we know that Q1=A1V1…

Q: The human circulation system has approximately 1×109 capillary vessels. Each vessel has a diameter…

A: It is given that,

Q: Understand capillary action.

A: Capillary action is a type of process in which the liquid like water moves against the gravity…

Q: * The blood speed in a normal segment of a horizontal artery is 0.11 m/s. An abnormal segment of the…

A: To determine the pressure on system, P2-P1=12ρv12-12ρv22

Q: The radius of the aorta is about 1.0 cm, and the blood passing through it has a speed of about 35…

A: radius of aorta (r) = 1 cm speed of blood in an aorta (v) = 35 cm/sec = 0.35 m/s

Q: Relate pressure to fluid density and depth.

A: The relation between the pressure, fluid density and depth is given as, P=ρ×g×h Here, ρ is the…

Q: Estimate the average blood pressure in a person's foot if the foot is 1.54 m below the aorta, where…

A: Pav=Paorta+ρgh

Q: How is pressure related to the sharpness of a knife and its ability to cut?

A: Pressure is defined as a force exerted per unit area, while the sharpness of a knife is defined as…

Q: The volume flow rate in an artery that supplies blood to the brain is 3.5 x 10^-6 m^3 /s. If the…

A: Let the rate of blood flow through artery is denoted by R and A is the artery’s cross-sectional…

Q: How high a column of blood can an arterial pressure of 100 torr support? (The density of blood is…

A: P=Pressure=100 torr=100×133.322=13332.2 Paρ=Density of blood=1.05 g/cm3=1050 kg/m3h=Supportable…

Q: hydrocephalus Increased pressure of fluid inside the arteries Increased pressure of fluid inside the…

A: Hydrocephalus is a disease in which there is a buildup of fluid in the cavities deep inside the…

Q: Define Capillary Action And Give Some Examples Of It

A: Capillary action, also known as capillary motion, capillary effect, capillarity, and wicking, can be…

Q: Estimate the average blood pressure in a person's foot if the foot is 1.35 m below the aorta, where…

A: The density of the blood is ρblood = 1060 kg/m3 Consider the pressure in the person's feet is P2 and…

Q: Many entrainment devices have a constriction, called a Venturi, such as shown. How does this bolster…

A: Venturi meter is a device which is used to measure the rate of flow of fluid owing in the tube.

Q: What are the factors that affect the force of buoyancy on an object in a fluid? How does each factor…

A: Ans:- Image-1

Q: When the arteries get narrow the resistance to blood flow decreased and pressure decrease. True O…

Q: The human circulation system has approximately 1 × 109 capillary vessels. Each vessel has a diameter…

A: The flow rate of a fluid can be written as, F=dVdt Now, V=volume of vessel= Cross-sectional Area x…

Q: What will happen to rise of liquid in a capillary tube if its top end is closed?

A: When the top end of the capillary tube is closed, there will be air trapped inside the tube. Liquid…

Q: Oxygen reaches the veinless cornea of the eye bydiffusing through its tear layer, which is 0.500-mm…

A: The equation for the time required can be obtained as

Q: The volume flow rate in an artery that supplies blood to the brain is 3.5x10^-6 m3/s. If the…

Q: Biophysics In which circulation is there a greater amount of blood mass? a.) in the pulmonary…

A: The circular of blood is greater amount in the systemic circulation because it is greater force…

Q: Blood pressure is measured by _______. A) Barometer B) Sphygmomanometer C) Hydrometer D)…

A: Given that, Blood pressure

Q: Pressure between the inside chest wall and the outside of the lungs normally remains negative.…

Q: Predict the hydraulic conductance, Lp, for Starling's equation for flow through the wall of a…

A: Given:- a total capillary surface area (entire body) of 500 m2 average tortuosity of 1.8, average…

Q: 2 сm oil 10 cm water

Concept explainers

Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.

Question

Cocaine use causes vasoconstriction. Explain how does vasoconstriction affect blood pressure. Show the relationship by relating it to Poiseuille’s equation.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Poiseuille's Equation

VIEW

Step 2: Explanation

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A blood platelet drifts along with the flow of blood through an artery that is partially blocked. As the platelet moves from the narrow region into the wide region, the blood pressure will increase, decrease or stay the same? Explain your answer.
Meme Questions: 1. Normal blood flow through the internal carotid artery is 400 mL/min. If this vessel's radius is reduced by 50% of its normal radius and the pressure does not change, what is the new blood flow?BF= PP 400 mL/m R 200 ml/m : 000
If you are infusing a 1 L Iv bag of a normal saline at a rate of 100 ml per hour, how long will it take for the entire IV bag to infuse into the patient ?
The main artery subdivides into 12 capillaries. The cross-sectional area of the main artery is 30 cm2 and the cross-sectional area of each of the capillaries is 6 cm2. The blood flow volume through the main artery and its capillaries is 12 ml/sec. Calculate the velocity of the blood flowing through the artery and the capillaries. (Please show all the steps in your calculation. You may draw a figure).
(a) As blood passes through the capillary bed in an organ, the capillaries join to form venules (small veins). If the blood speed increases by a factor of 4.00 and the total cross-sectional area of the venules is 10.0 cm2, what is the total cross-sectional area of the capillaries feeding these venules? (b) How many capillaries are involved if their average diameter is 10.0 m?
how a common measurement of arterial blood pressure is made. Is there any effect on the measured pressure if the manometer is lowered? What is the effect of raising the arm above the shoulder? What is the effect of placing the cuff on the upper leg with the person standing? Explain your answers in terms of pressure created by the weight of a fluid.
What blood vessels are known to have the slowest flow speed? Why is this important?
Oxygen reaches the veinless cornea of the eye bydiffusing through its tear layer, which is 0.500-mm thick. Howlong does it take the average oxygen molecule to do this?
A large artery has a diameter of 7 mm. This artery divides into two identical smaller arteries, the velocity of the blood in the smaller arteries is the same as the velocity of the blood in the larger artery. What is the diameter of the smaller arteries?
A blood platelet drifts along with the flow of blood through an artery that is partially blocked by deposits. As the platelet moves from the narrow region to the wider region, it experiences A)an increase in pressure. B)no change in pressure. C)a decrease in pressure. D)a decrease in the surrounding blood density. E)an increase in the surrounding blood density.
Fish can adjust their buoyancy with an organ called the swim bladder. The swim bladder is a flexible gas-filled sac; the fish can increase or decrease the amount of gas in the swim bladder so that it stays neutrally buoyant—neither sinking nor floating. Suppose the fish is neutrally buoyant at some depth and then goes deeper. What needs to happen to the volume of air in the swim bladder? Will the fish need to add or remove gas from the swim bladder to maintain its neutral buoyancy?
2. Suppose that a person afflicted with COVID-19 has an enlarged portion of artery with a cross-sectional area 40% bigger than the normal. What is the speed of the blood through this enlarged artery?