Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 40, Problem 3VCQ
Figure 40.17 Varicose veins are veins that become enlarged because the valves no longer close properly, allowing blood to flow backward. Varicose veins are often most prominent on the legs. Why do you think this is the case?
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Chapter 40 Solutions
Biology 2e
Ch. 40 - Figure 40.10 Which of the following statements...Ch. 40 - Figure 40.11 Which of the following statements...Ch. 40 - Figure 40.17 Varicose veins are veins that become...Ch. 40 - Why are open circulatory systems advantageous to...Ch. 40 - Some animals use diffusion instead of a...Ch. 40 - Blood flow that is directed through the lungs and...Ch. 40 - White blood cells: can be classified as...Ch. 40 - Platelet plug formation occurs at which point?...Ch. 40 - In humans, the plasma comprises what percentage of...Ch. 40 - The red blood cells of birds differ from mammalian...
Ch. 40 - The heart's internal pacemaker beats by: an...Ch. 40 - During the systolic phase of the cardiac cycle,...Ch. 40 - Card io myocytes are similar to skeletal muscle...Ch. 40 - How do arteries differ from veins? Arteries have...Ch. 40 - High blood pressure would be a result of...Ch. 40 - Describe a closed circulatory systemCh. 40 - Describe systemic circulationCh. 40 - IS. Describe the cause of different blood type...Ch. 40 - List some of the functions of blood in the body.Ch. 40 - How does the lymphatic system work with blood...Ch. 40 - Describe the cardiac cycleCh. 40 - What happens in capillaries?Ch. 40 - How does blood pressure change during heavy...
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- The abnormal narrowing of the lumen of a vein is known as _____________________.arrow_forwardFigure 40.11 Which of the following statements about the heart is false? The mitral valve separates the left ventricle from the left atrium. Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves. The mitral valve is an atrioventricular valve.arrow_forwardThe process of recording a picture of blood vessels is called ____________________.arrow_forward
- Figure 16.10 Which of the following statements about the circulatory system is false? a. Blood in the pulmonary vein is deoxygenated. b. Blood in the inferior vena cava is deoxygenated. c. Blood in the pulmonary artery is deoxygenated. d. Blood in the aorta is oxygenated.arrow_forwardName the vein that starts as well as terminates as capillaries.arrow_forwardWhich of the following does NOT have the ability to contract? Group of answer choices venules capillaries arteries veinsarrow_forward
- Place in correct order the blood vessel type a blood cell passes through as it travels from the left ventricle and back to the right Atria. You should use the terms, arteriole, venule, capillary bed, muscular artery, elastic artery, veinarrow_forwardamalumastat is a medication that causes the arteries to increase in diameter so more blood can flow through. Which layer of the artery is this medication targeting? Group of answer choices The tunica adventitia The tunica intima The tunica sclerosa The tunica externa The tunica mediaarrow_forward
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