Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 48, Problem 3TY
A major advantage of a double circulation is that
- a. blood can be pumped to the upper portions of the body by one circuit and to the lower portions of the body by the other circuit.
- b. each circuit can pump blood with differing pressures to optimize the function of each.
- c. the oxygenated blood can mix with the deoxygenated blood before being pumped to the tissues of the body.
- d. less energy is required to provide nutrients and oxygen to the tissues of the body.
- e. All of the above are advantages of a double circulation.
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A major advantage of a double circulation is thata. blood can be pumped to the upper portions of the body by onecircuit and to the lower portions of the body by the other circuit.b. each circuit can pump blood at a different pressure to optimize thefunction of each.c. the oxygenated blood can mix with the deoxygenated blood beforebeing pumped to the tissues of the body.d. less energy is required to provide nutrients and oxygen to the tissuesof the body.e. All of the above are advantages of a double circulation.
Which 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.
Which of the following best describes the primary role of resistance vessels?
Group of answer choices
a.Providing nutrient supply to the walls of larger vessels
b. They regulate arterial blood pressure and blood flow within the organs.
c. Ensuring blood storage during periods of low cardiac output
d. Directing blood flow to specific organs based on demand
Chapter 48 Solutions
Biology
Ch. 48.1 - Prob. 1CCCh. 48.1 - Prob. 1CSCh. 48.2 - Core Skill: Connections Leukocytes are part of the...Ch. 48.3 - Prob. 1CCCh. 48.3 - Prob. 2CCCh. 48.4 - Do erythrocytes enter and exit through pores in...Ch. 48.7 - Prob. 1CSCh. 48.7 - Prob. 1CCCh. 48.7 - Prob. 2CCCh. 48.8 - Prob. 1EQ
Ch. 48.8 - Prob. 2EQCh. 48.8 - Prob. 3EQCh. 48.9 - Prob. 1CCCh. 48.10 - Prob. 1CSCh. 48 - Prob. 1TYCh. 48 - Prob. 2TYCh. 48 - A major advantage of a double circulation is that...Ch. 48 - Prob. 4TYCh. 48 - For blood flow through a closed circulation, which...Ch. 48 - Prob. 6TYCh. 48 - The countercurrent exchange mechanism in fish...Ch. 48 - The tracheal system of insects a. consists of...Ch. 48 - Prob. 9TYCh. 48 - Prob. 10TYCh. 48 - Prob. 1CQCh. 48 - Prob. 2CQCh. 48 - Prob. 3CQCh. 48 - Prob. 1COQCh. 48 - List the components of the mammalian respiratory...
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- Which of the following statements is false?a. Only arteries carry oxygenated blood.b. Both arteries and veins have a layer of smooth muscle.c. Capillary beds lie between arteries and veins.d. Sphincters regulate the flow of blood through capillaries.arrow_forwardWhich of the choices below best describes the systemic circulation of blood?a. The flow of blood into the right atrium and eventually out of the left ventricle.b. The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.c. The movement of blood into the coronary arteries, through capillaries into the coronary sinus.d. The movement of blood from the aorta, through arteries and capillaries and then eventually to the vena cavae.arrow_forwardWhich of the following statements is correct? a. Arteries carry blood away from the heart and veins carry blood to the heart. b. Arteries carry blood to the heart and veins carry blood away from the heart. C. All arteries carry oxygen-rich blood and veins carry oxygen-poor blood. d. Arteries carry oxygen-poor blood and veins carry oxygen-rich blood.arrow_forward
- Which of the following statements is (are) true concerning the pathways for blood clotting?a. The intrinsic pathway takes less time than the extrinsic pathway.b. The intrinsic and extrinsic pathways require sodium.c. The intrinsic pathway is started by factors from damaged tissues.d. The intrinsic pathway requires the same clotting factors as the extrinsic pathway.e. The common pathway results in fibrin changing to fibrinogenarrow_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_forwardThe delivery of blood by the left ventricle into the sorta is intermittent, whereas blood flow in the peripheral circulation is usually continuous. Which of the following best explains this difference? A. Arteries contain more elastic tissue than veins . B Capillary walls contain little elastic or muscular tissue . C. Continuous flow is needed to meet metabolic requirements. D. Passive recoil of the arteries delivers blood to the periphery during diastole E . Rhythmic contractions of arterial smooth muscie increase the diastolic pressure to above zeroarrow_forward
- Which of the following is not a characteristic of a capillary? a. Fenestrated capillaries allow for larger amounts of materials to be exchanged. b. Sinusoid capillaries are the main type of capillary around the brain. c. Capillaries often are arranged in a capillary bed that is supplied by an arteriole. d. The capillary wall consists of an endothelium and a basement membrane only—there is no subendothelial layer.arrow_forwardA major difference between arteries and veins is thata. arteries always carry oxygenated blood; veins never do.b. arteries carry blood away from the heart; veins return blood.c. only arteries have valves.d. veins feed blood into capillaries.arrow_forwardWhich of the following characteristics is unique to capillaries and not to other blood vessels? A. have low blood pressure B. have high blood pressure C. exchange substances (ions, small molecules and water) between blood and tissues D. carry oxygen and carbon dioxide E. connect to the heart and lungsarrow_forward
- Exchange of waste material, oxygen, carbon dioxide, and metabolites such as salts and food molecules takes place in thea. capillaries.b. venules.c. arterioles.d. arteries.arrow_forwardWhich of the following is true when comparing arteries and veins? A Arteries are less muscular than veins. B Arteries have valves; veins do not. C "At any given time, there is more blood present in arteries than in veins." D Arteries carry blood away from the heart; veins carry blood to the heart.arrow_forwardFigure 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_forward
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