EBK HUMAN BIOLOGY
11th Edition
ISBN: 8220100545931
Author: MCMILLAN
Publisher: Cengage Learning US
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Textbook Question
Chapter 7, Problem 4SQ
In the systemic circuit, the heart’s _______ half pumps blood to all body regions; then blood flows to the heart.
- a. left; deoxygenated; oxygenated
- b. right; deoxygenated; oxygenated
- c. left; oxygenated; deoxygenated
- d. right; oxygenated; deoxygenated
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Chapter 7 Solutions
EBK HUMAN BIOLOGY
Ch. 7 - List the functions of the cardiovascular system.Ch. 7 - Define a heartbeat, giving the sequence of events...Ch. 7 - What is the difference between the systemic and...Ch. 7 - Prob. 4RQCh. 7 - Prob. 5RQCh. 7 - State the main functions of venules and veins....Ch. 7 - Label the hearts main parts in the diagram below.Ch. 7 - Cells obtain nutrients from and deposit waste into...Ch. 7 - The contraction phase of the heartbeat is ______;...Ch. 7 - Prob. 3SQ
Ch. 7 - In the systemic circuit, the hearts _______ half...Ch. 7 - After you eat, blood passing through the GI tract...Ch. 7 - Prob. 6SQCh. 7 - Prob. 7SQCh. 7 - Prob. 8SQCh. 7 - _____ contraction drives blood through the...Ch. 7 - Match the type of blood vessel with its major...Ch. 7 - Prob. 11SQCh. 7 - A patient suffering from hypertension may receive...Ch. 7 - Heavy smokers often develop abnormally high blood...Ch. 7 - Prob. 3CTCh. 7 - Several years ago the deaths of several airline...
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- Which heart chamber has the thickest wall? a. right atrium c. left atrium b. right ventricle d. left ventriclearrow_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_forward38. All blood cells are produced in the A. red bone marrow. B. yellow bone marrow. C. white bone marrow. ____ 39. The heart muscle itself receives its blood supply from the A. coronary artery. B. aorta. C. inferior vena cava. ____ 40. The parasympathetic and sympathetic nervous systems A. work identically on different areas of the body. B. may be antagonistic in their actions. C. are always subject to conscious control.arrow_forward
- Which is not true about our heart A. ventricular systole squeezes blood to the lungs and the body B. Both ventricles hold the same volume of blood C. The pacemaker is in the right atrium D. blood from the left lung goes to the left atrium and blood from the right lung goes to the right atriumarrow_forwardDuring the systolic phase of the cardiac cycle, the heart is. a. contracting b. relaxing c. contracting and relaxing d. filling with bloodarrow_forwardBlood flow through capillaries in the walls of the left ventricle is ______. A unnecessary because the myocardiocytes in the wall of the left ventricle get plenty of O2 from the blood they pump B greatest during diastole; these capillaries are squeezed shut during systole when the surrounding muscle cells contract C greatest during systole; blood stops following through capillaries during diastole because the heart is relaxedarrow_forward
- How would the left ventricle of a patient who had had high blood pressure for many years differ from the left ventricle of a normal heart? A it would have a larger volume of muscle B it would have a smaller volume of muscle C it would be smaller than the right ventricle D chronic high blood pressure would weaken the heart valves but would have no anatomical effects on the walls of the ventriclesarrow_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_forwardSA node is the main pacemaker of the heart. Why is the normal heart rate lower than the intrinsic firing rate of the SA node? A. sympathetic inputs from the hypothalamus are slowing it down B. parasympathetic inputs from medulla oblongata are slowing it down C. there is inertia in heart muscle as it takes time for impulse to spread through all the cells D. centrifugal inputs from the AV node are slowing it downarrow_forward
- Which of the following is the correct circulatory sequence forblood to pass through part of the heart?a. R. atrium → right AV valve → R. ventricle → pulmonarysemilunar valveb. R. atrium → left AV valve → R. ventricle → pulmonarysemilunar valvec. L. atrium → right AV valve → L. ventricle → aorticsemilunar valved. L. atrium → left AV valve → L. ventricle → pulmonarysemilunar valvearrow_forwardWhich of the following could be the correct pathway of travel for a blood cell currently in the brachiocephalic artery? O A. right arm radial artery>right arm cephalic vein> back to heart O B. left arm radial artery>left arm cephalic vein>back to heart O C. right common carotid artery>internal jugular vein>back to heart O D. left common carotid artery>internal jugular vein>back to heart O E. all of the above are possible F. none of the above a possible G. both A and C would be possible O H. both B and D would be possible O I. both A and B would be possible O J. both C and D would be possiblearrow_forwardIn humans the wall of the left ventricle is thicker than that of the right ventricle. This adaptation is due to the fact that the left ventricle Select one: O a. pumps blood to the extremities of the body O b. pumps blood that is low in oxygen content O C. is smaller than the right ventricle O d. pumps blood to the left and right lungsarrow_forward
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