Homework Answers
Add Answer to:
Equation 1.59 relates the resistance of a vessel to its radius. In the circulatory system, the...
10) In chronic hypertension, vessel radius, r, is reduced due to a thickening of the vessel...
10) In chronic hypertension, vessel radius, r, is reduced due to a thickening of the vessel wall. Poiseuille's Law is stated as follows, 8 xn XL RE- TT X a) According to Poiseuille's Law, state what happens to blood flow resistance, R, when vessel radius, r, is reduced for a person who suffers from chronic hypertension. The equation of fluid flow rate can be stated as follows, LAP 8 XI, X7 x L Хr b) According to the equation of...
In hemodynamics, blood flow through the cardiovascular system can be modeled as an electric circuit in...
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...
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...
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...
The lungs and the circulatory system cooperate to supply the body with oxygen and to remove...
The lungs and the circulatory system cooperate to supply the body with oxygen and to remove carbon dioxide. In the table below, indicate the relative oxygen and carbon dioxide levels found in the listed structures by writing high, low, or being exchanged. Structure Oxygen Levels Carbon dioxide levels Left atrium / left ventricle Aorta /systemic arteries Systemic capillaries Systemic veins/ vena cavae Right atrium / right ventricle Capillaries surrounding alveoli Pulmonary artery Pulmonary vein Heavy smokers often develop abnormally high...
A spherical weather balloon is filled with hydrogen until its radius is 3.10 m. Its total...
A spherical weather balloon is filled with hydrogen until its radius is 3.10 m. Its total mass including the instruments it carries is 16.0 kg. (a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. kN (b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground? kN (c) Why does the radius of the balloon tend to increase as it rises to...
1. A particular gas exerts a pressure of 689 mmHg. What is this pressure in units...
1. A particular gas exerts a pressure of 689 mmHg. What is this pressure in units of bar? 2. A particular gas exerts a pressure of 731 mmHg. What is this pressure in units of atmospheres? 3.A flexible vessel contains 78.00 L of gas at a pressure of 1.50 atm. Under conditions of constant temperature and moles of gas, what is the pressure of the gas when the volume of the vessel is tripled? 4.A flexible vessel is filled to...
QUESTION 12 Local control of arteriolar resistance leads to an increase in blood flow to a...
QUESTION 12 Local control of arteriolar resistance leads to an increase in blood flow to a tissue when oxygen level increases. H+ level decreases. carbon dioxide level increases. pH increases. 2 points (Extra Credit) QUESTION 13 Which of the following is/are correct for arteries but NOT veins? carry low-oxygen blood act as a volume reservoir have low blood pressure store pressure generated by the heart 2 points QUESTION 14 Mean arterial pressure is determined by total blood volume....
QUESTION 1 Vasovagal syncope is one of the most common causes of fainting and occurs in...
QUESTION 1 Vasovagal syncope is one of the most common causes of fainting and occurs in some individuals when they see blood or a needle. Which of the following physiological responses occurs? reduced cerebral blood flow decreased blood pressure decreased heart rate All the alternatives 2 points QUESTION 2 Calculate mean arterial pressure (MAP) if a person has a blood pressure reading of 107/72. 96 mm Hg 76 mm Hg 119 mm Hg 84 mm Hg 2 points ...
questions number 1,2,3,4,5,6,7,8,9,10,11 Chapter 22: The Cardiovascular System: Vessels and Circulation Name: Date: Section: POST-LABORATORY WORKSHEET...
questions number 1,2,3,4,5,6,7,8,9,10,11
Chapter 22: The Cardiovascular System: Vessels and Circulation Name: Date: Section: POST-LABORATORY WORKSHEET The 1 corresponds to the Learning Objectivels) listed in the chapter opener outline, Do You Know the Basics? Exercise 22.1: Blood Vessel Wall Structure 1. The tunic in blood vessels that is composed of simple squamous epithelium for endothelium) and a subendothelial layer composed of areolar com tissue is known as the tunica _linterna/externa). O 2 Exercise 22.2: Elastic Artery -The Aorta 2. Which...
1. Where in the circulatory system and its associated tissues is the partial pressure of O2lowest...
1. Where in the circulatory system and its associated tissues is the partial pressure of O2lowest and the partial pressure of CO2highest? a. alveolar capillary bed d. body tissue surrounding systemic capillaries b. exhaled air e. pulmonary arteries and systemic veins c. pulmonary veins and systemic arteries 2. Increasing the value of which of the following stabilizes the R-state of hemoglobin and makes it harder to unload O2? a. [BPG] d. [O2] b. [CO2] e. temperature c. ...
10) In chronic hypertension, vessel radius, r, is reduced due to a thickening of the vessel wall. Poiseuille's Law is stated as follows, 8 xn XL RE- TT X a) According to Poiseuille's Law, state what happens to blood flow resistance, R, when vessel radius, r, is reduced for a person who suffers from chronic hypertension. The equation of fluid flow rate can be stated as follows, LAP 8 XI, X7 x L Хr b) According to the equation of...
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...
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...
1. A particular gas exerts a pressure of 689 mmHg. What is this pressure in units of bar? 2. A particular gas exerts a pressure of 731 mmHg. What is this pressure in units of atmospheres? 3.A flexible vessel contains 78.00 L of gas at a pressure of 1.50 atm. Under conditions of constant temperature and moles of gas, what is the pressure of the gas when the volume of the vessel is tripled? 4.A flexible vessel is filled to...
questions number 1,2,3,4,5,6,7,8,9,10,11
Chapter 22: The Cardiovascular System: Vessels and Circulation Name: Date: Section: POST-LABORATORY WORKSHEET The 1 corresponds to the Learning Objectivels) listed in the chapter opener outline, Do You Know the Basics? Exercise 22.1: Blood Vessel Wall Structure 1. The tunic in blood vessels that is composed of simple squamous epithelium for endothelium) and a subendothelial layer composed of areolar com tissue is known as the tunica _linterna/externa). O 2 Exercise 22.2: Elastic Artery -The Aorta 2. Which...
Most questions answered within 3 hours.
-
what would be the best entry mode in shipping from the U.S to Spain
by boat...
asked 1 minute ago -
Under certain conditions, the substance ammonium
nitrate can be broken down to form dinitrogen
monoxide and...
asked 2 minutes ago -
1. A boy stands on one end of a boat, and then walks to the
other...
asked 12 minutes ago -
Casey is on trial under criminal allegations that she engaged in
fraudulent behavior at the company...
asked 17 minutes ago -
Surplus Styles is a manufacturer of hair care products,
including shampoos, conditioners, and hair gels. The...
asked 15 minutes ago -
Using an income-expenditure diagram, use the infinite line and
double-drop line tools to show the economy...
asked 24 minutes ago -
Which expression computes a pseudorandom integer between -10 and
10 using rand()
from cstdlib?
A. (rand(...
asked 30 minutes ago -
Roybus, Inc., a manufacturer of flash memory, just reported that
its main production facility in Taiwan...
asked 38 minutes ago -
Two capacitors connected in parallel produce an equivalent
capacitance of 45.0 μF but when connected in...
asked 47 minutes ago -
The differences between the two sets of dependent data are -1,
2,-,2, 2. Round to the...
asked 1 hour ago -
A χ2-curve, looking at the relationship between age and hours
spent working at an office per...
asked 1 hour ago -
The pH of a sample of water from a river is 5.0. A
sample of effluent from...
asked 2 hours ago