Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 33, Problem 2AC
Summary Introduction
To describe:
The factors that would be taken into account to ration the cardiovascular procedure, such as heart transplant or bypass surgery.
Introduction:
Cardiovascular diseases affect the blood vessels and heart, and result in generating the disturbance in normal functioning of cardiovascular system. Blockage in the arteries results in the death of heart tissue followed by heart attack.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Scenario C
The United States federal government is faced with budget
problems resulting in large deficits and the need to reduce
spending. Congress suggests reducing spending by making
cuts in the Medicare and Medicaid programs. The congres-
sional representative for your district asks for your opinion
and your rationale in response to each of the following
questions.
1. Should Medicare pay the cost of coronary bypass
surgery for an active 85-year-old person?
2. Should Medicaid pay for care in an extended care
facility for an 88-year-old person who has had a stroke
and is long-term comatose?
3. Should Medicare or Medicaid pay for lifestyle
prescription drugs (e.g., Viagra) for men who are
eligible for these programs?
Explain the association between atherosclerosis and ischemic heart disease. Imagine that you were the Surgeon General of the United States. What types of programs would you advocate to decrease heart disease? Do you think that as a society we should invest resources into the development of stemcell therapies for more effective treatment of myocardial infarction?
Blood is pushed out of the heart through a large vessel, called the aorta. The aorta then divides into smaller and smaller blood vessels, eventually reaching vessels called capillaries. Capillaries are so small that oxygen and nutrients can diffuse across the vessel walls and into the tissues of the body, with CO2 and waste diffusing back into the blood.
Let's say that the cross-sectional area of the aorta is 1 cm2 = 100 mm2. The blood pumps through the aorta at 100 mm/s but only through the capillaries at 1 mm/s. If each capillary has a cross-sectional area of 20 mm2, how many capillaries must there be in the body?
Note: these numbers are not physiologically correct, but were chosen to make the math easier. The blood velocity through the aorta is closer to 300 mm/s. The capillaries have a total cross-sectional area of ~600,000 mm2 (6000 cm2), with a blood flow rate closer to 0.2 mm/s.
Chapter 33 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 33.1 - Why doesnt insect hemolymph need hemoglobin?Ch. 33.1 - Prob. 1CYLCh. 33.1 - compare open and closed circulatory systems?Ch. 33.1 - describe the functions of the vertebrate...Ch. 33.2 - Prob. 1CSCCh. 33.2 - Prob. 1TCCh. 33.2 - Prob. 1HYEWCh. 33.2 - describe the three types of vertebrate hearts and...Ch. 33.2 - Prob. 2CYLCh. 33.2 - Prob. 3CYL
Ch. 33.3 - Prob. 1TCCh. 33.3 - Prob. 2TCCh. 33.3 - describe each component of blood and explain its...Ch. 33.3 - Prob. 2CYLCh. 33.3 - explain the sequence of events during blood...Ch. 33.4 - Prob. 1TCCh. 33.4 - Prob. 2TCCh. 33.4 - Prob. 1CYLCh. 33.4 - Prob. 2CYLCh. 33.4 - Prob. 3CYLCh. 33.5 - Prob. 1TCCh. 33.5 - Prob. 1CSCCh. 33.5 - Prob. 1CYLCh. 33.5 - Prob. 2CYLCh. 33.5 - Prob. 3CYLCh. 33 - Prob. 1MCCh. 33 - Which of the following is True? a. Arteriole...Ch. 33 - Prob. 3MCCh. 33 - Prob. 4MCCh. 33 - Which of the following is true of blood pressure?...Ch. 33 - Prob. 1FIBCh. 33 - Prob. 2FIBCh. 33 - The hearts pacemaker is called the (complete term)...Ch. 33 - Prob. 4FIBCh. 33 - Prob. 5FIBCh. 33 - Prob. 6FIBCh. 33 - Lymph is ___________ that has entered lymphatic...Ch. 33 - List the major structures of all circulatory...Ch. 33 - Describe and compare the features of open and...Ch. 33 - Explain how two- and three-chambered vertebrate...Ch. 33 - Prob. 4RQCh. 33 - Prob. 5RQCh. 33 - Prob. 6RQCh. 33 - Prob. 7RQCh. 33 - Prob. 8RQCh. 33 - Describe the cardiac cycle, and relate the...Ch. 33 - Prob. 10RQCh. 33 - Prob. 11RQCh. 33 - Prob. 12RQCh. 33 - In what way do veins and lymphatic vessels...Ch. 33 - Prob. 1ACCh. 33 - Prob. 2AC
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- why cardiac therapy is for the worst?arrow_forwardOne of the current major areas of research in heart transplants is the use of pig hearts for human transplants. Since pig and human hearts are virtually identical anatomically, researchers feel that it can make hearts available to everyone that needs one. Should the organs of pigs (or any other animals) be used to preserve the lives of humans? Why or why not?arrow_forwardWhich of the following is the correct sequence of blood flow through pulmonary circulation? Group of answer choices Right atrium → right ventricle → pulmonary arteries → pulmonary capillaries (in lungs) → pulmonary veins → left atrium Left atrium → left ventricle → pulmonary arteries → pulmonary capillaries (in lungs) → pulmonary veins → right atrium Right atrium → right ventricle → pulmonary capillaries (in lungs) → pulmonary arteries → pulmonary veins → left atrium Left atrium → left ventricle → pulmonary capillaries (in lungs) → pulmonary arteries → pulmonary veins → right atrium Left atrium → left ventricle → pulmonary veins → pulmonary arteries → pulmonary capillaries (in lungs) → right atriumarrow_forward
- Blood is a crucial component of the cardiovascular system. Beside each job, write which type of blood cell does that job. i. Carry Oxygen or food to your lungs. ii. Find germs. iii. Eats foreign things in your body. iv. Take Carbon Dioxide or waste away. v. Kill infections.What do you need to do to keep your heart healthy? Create a poster or brochure in which you describe the things a person can do to maintain good heart health.arrow_forwardAs blood goes from the left ventricle through the arteries and veins of the human body, both its speed and pressure change. The arteries and arterioles can either constrict, reducing the area, or dilate, increasing the area, in response to certain conditions. Both of these changes can affect blood flow and blood pressure. An artery can also develop a permanent narrow area (stenosis) or a permanent wide area (aneurysm). Both of these changes can have significant health consequences. Suppose that in response to some stimulus a small blood vessel narrows to 90% of its original diameter. If there is no change in the pressure across the vessel, what is the ratio of the new volume flow rate to the original flow rate?A. 0.66 B. 0.73 C. 0.81 D. 0.90arrow_forwardJohn black is a 58 year old mechanic that has prosthetic heart valves and is on warfarin. He is coming for his teeth cleaning and the dentist ask his physician about antibiotic prophylaxis. According to the AMA, what are the high risk cardiac conditions where antibiotic prophylaxis is needed? If he needs an antibiotic what classes are acceptable and which are not? Need complete solution of question Be sure your answer is unique and correct ..... If u copied from internet or chegg I report to barlteyby .thanksarrow_forward
- A stent is a device that is implanted into an occluded artery to permit increased blood flow. A permanent, yet flexible, device is needed for use as a vascular stent. What biomaterial are used to make stents?Feel free to use online resources such as Google Scholar to find this information. Guidant and Boston Scientific are two companies that currently produce coronary stents and their website will also give more information. What material is preferred to produce a blood bag and a dialysis bag, and whyarrow_forwardA 50-year-old female patient comes into the physician’s office and states, “People in my family all start to die at 50 from heart disease.” What guidelines can you give her to help prevent the disease? Explain to the patient the symptoms a woman may experience if she is having a heart attack.arrow_forwardWhich of the following is the best description of what happens in capillaries? A. Capillaries are surrounded by thicker smooth muscle moving blood cells to exchange nutrients and oxygen. B. Capillaries connect minor veins to major veins returning blood to the heart. C. Capillaries are the location where oxygen, carbon dioxide, and nutrients are exchanged with tissues at the cellular level. D. Capillaries are the site where blood mixes with interstitial fluid to allow for gas and nutrient exchange.arrow_forward
- If you had to advise future students on how to work on such a project, on cardiovascular malformation, what would you tell them?arrow_forwardBob is a 36 year old construction worker. He is mildly overweight (BMI=27), has hypertension, a family history of heart disease, no structured exercise and he is presently trying to quit smoking. One month ago, he complained of chest pain at work, and was rushed to hospital. A coronary angiogram confirmed that he had two (2) blocked arteries. Physicians tried to do angioplasty to open his clogged arteries but the procedure did not work. Subsequently, as a preventive measure, Bob had open heart surgery. His recovery in the hospital was excellent. His follow-up Bruce protocol test results (performed at rehab facility) are below. Previous exercise history/diet history: never exercised before. Only reason he is exercising is because his wife and doctor have told him he needs to. Eats fast food for lunch every day. Only healthy meal is dinner. Summary of Client Interview: thinks he gets enough exercise at work. “Hey I work hard all day, isn’t that enough?” “When I’m I going to possibly find…arrow_forwardBob is a 36 year old construction worker. He is mildly overweight (BMI=27), has hypertension, a family history of heart disease, no structured exercise and he is presently trying to quit smoking. One month ago, he complained of chest pain at work, and was rushed to hospital. A coronary angiogram confirmed that he had two (2) blocked arteries. Physicians tried to do angioplasty to open his clogged arteries but the procedure did not work. Subsequently, as a preventive measure, Bob had open heart surgery. His recovery in the hospital was excellent. His follow-up Bruce protocol test results (performed at rehab facility) are below. 4.What SMART goals would you set for Bob to keep him motivated? 5. What diet may his physician have recommended that you may be able to help him with?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Complications during Labour and Delivery; Author: FirstCry Parenting;https://www.youtube.com/watch?v=QnCviG4GpYg;License: Standard YouTube License, CC-BY