Anatomy & Physiology: An Integrative Approach
2nd Edition
ISBN: 9780078024283
Author: Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher: McGraw-Hill Education
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Chapter 20, Problem 2CSL
Arteries tend to have a lot of vascular anastomoses around body joints, such as the elbow and knee. Can you think of a reason why this would be beneficial?
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In bypass surgery, the cardiovascular surgeon will collect a portion of the living saphenous vein from the patient and implant it as a shunt between the same patient's ascending aorta and distal coronary artery. What do you think would happen to the vein tissue after a few weeks of exposing the vein cells to arterial pressure and flow conditions? (minimum 30 words)
What do you mean by double circulation? Represent it diagramatically.
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Chapter 20 Solutions
Anatomy & Physiology: An Integrative Approach
Ch. 20.1 - What are three differences in anatomic structure...Ch. 20.1 - Prob. 2WDYLCh. 20.1 - What type of capillary is the most permeable, and...Ch. 20.1 - How does a vein serve as a blood reservoir?Ch. 20.1 - Prob. 5WDYLCh. 20.2 - In which type of vessel is blood flow the slowest?...Ch. 20.3 - What substances are transported by diffusion...Ch. 20.3 - Prob. 8WDYLCh. 20.3 - How does the hydrostatic pressure change from the...Ch. 20.3 - Which two pressures have the largest values?...
Ch. 20.3 - If these lymph vessels were nonfunctional, what...Ch. 20.4 - In what ways is angiogenesis stimulated in...Ch. 20.4 - Prob. 13WDYLCh. 20.4 - What relationship exists between metabolic...Ch. 20.4 - Prob. 15WDYLCh. 20.5 - Prob. 16WDYLCh. 20.5 - Prob. 17WDYLCh. 20.5 - How is the small pressure gradient in veins...Ch. 20.5 - How is the pressure gradient to move blood through...Ch. 20.5 - How is resistance defined?Ch. 20.5 - What are the three factors that alter resistance?...Ch. 20.5 - Prob. 22WDYLCh. 20.6 - Prob. 23WDYLCh. 20.6 - What is the initial change to blood pressure when...Ch. 20.6 - Prob. 25WDYLCh. 20.6 - Prob. 26WDYLCh. 20.7 - Which organs have an increased proportion of...Ch. 20.8 - Prob. 28WDYLCh. 20.8 - Prob. 29WDYLCh. 20.9 - Prob. 30WDYLCh. 20.9 - Prob. 31WDYLCh. 20.10 - Prob. 32WDYLCh. 20.10 - Prob. 33WDYLCh. 20.10 - Prob. 34WDYLCh. 20.10 - What are the systemic arteries that supply...Ch. 20.10 - Prob. 36WDYLCh. 20.10 - Prob. 37WDYLCh. 20.10 - Prob. 38WDYLCh. 20.11 - Prob. 39WDYLCh. 20.11 - Prob. 40WDYLCh. 20.11 - Prob. 41WDYLCh. 20.11 - Prob. 42WDYLCh. 20.12 - List the five structures of fetal circulation, and...Ch. 20.12 - Prob. 44WDYLCh. 20 - _____ 1. Which of the following is not a...Ch. 20 - _____ 2. Which statement is accurate about veins?...Ch. 20 - _____ 3. Vasa vasorum are found in the tunica...Ch. 20 - _____ 4. Which of the following decreases...Ch. 20 - _____ 5. The __________ is a type of vessel with...Ch. 20 - _____ 6. An increase in _____ will result in an...Ch. 20 - Prob. 7DYKBCh. 20 - _____ 8. Velocity of blood flow is the slowest in...Ch. 20 - _____ 9. Blood pressure is regulated by the a....Ch. 20 - _____ 10. Name the correct pathway that blood...Ch. 20 - Prob. 11DYKBCh. 20 - Prob. 12DYKBCh. 20 - Explain the difference between hydrostatic and...Ch. 20 - Write the formula for determining net filtration...Ch. 20 - Prob. 15DYKBCh. 20 - Prob. 16DYKBCh. 20 - Briefly explain how changes in cardiac output,...Ch. 20 - Compare how the cardiac center and vasomotor...Ch. 20 - Prob. 19DYKBCh. 20 - What postnatal changes occur in the heart and...Ch. 20 - If a patient has cirrhosis of the liver and is...Ch. 20 - Prob. 2CALCh. 20 - Prob. 3CALCh. 20 - Prob. 4CALCh. 20 - Prob. 5CALCh. 20 - Prob. 1CSLCh. 20 - Arteries tend to have a lot of vascular...Ch. 20 - Explain why an overweight individual with high...
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- The abnormal narrowing of the lumen of a vein is known as _____________________.arrow_forwardSeveral years ago the deaths of several airline travelers led to warnings about economy-class syndrome. The idea is that economy-class passengers dont have as much leg room as passengers in more expensive seats, so they are more likely to sit essentially motionless for long periods on flightsconditions that may allow blood to pool and clots to form in the legs. This condition is called deep-vein thrombosis, or DVT. Given what you know about blood flow in the veins, explain why periodically getting up and moving around in the planes cabin during a long flight may lower the risk that a clot will form.arrow_forwardConsider a blood clot that formed in a pulmonary venule. If the clot detached, in which of the following vessel types would it be most likely to become stuck? Select one: a. pulmonary vein b. systemic artery c. systemic vein d. pulmonary artery Please don't copy from the internetarrow_forward
- A blood cell drifts along with the flow of blood through an artery that has a section partially blocked by fatty deposits on the artery wall.As the blood cell moves from the wide region of the artery into the narrow region (with the wall deposits), it experiences... *arrow_forwardLo n the surgical procedure called a bypass graft, a vessel is removed from a patient and used to make a vascular bridge that bypasses one of that patient's blocked arteries. A common vessel used for this procedure is the great saphenous vein. Why do you think a surgeon might use the great saphenous vein instead of the femoral vein or a large artery?arrow_forwardI learned that veins have the lowest pressure because they have thin walls and high pressure can rupture these thin vessels. Is it true?arrow_forward
- Usually arteries carry nutrient-rich blood, but there are veins that do also. What are their names?arrow_forwardWhen comparing veins and arteries of the same diameter, which of the following statements is not true? Select one: a. Veins have fewer smooth muscle fibers. b. Veins have a larger lumen. c. Veins have more elastic tissue. d. Veins have valves. e. Veins have thinner walls.arrow_forwardWhich of the following can be included in the description of a vein? A. Creamy white color B. Solid structure C. Generally empty of blood D. Collapses when incisedarrow_forward
- Describe four (4) anatomical AND physiological differences between an artery and a vein. Remember that "anatomical" means structure, and "physiological" means function. (That means explain, not just the structural differences, but also the "why.")arrow_forwardA 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_forwardBlood 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.arrow_forward
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