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CHAI Q1: CHOOSE THE CORRECT AN 1. An ECG measures a. changes in electrical potential during the cardiac cycle b. Ca2+ concentration of the ventricles in diastole. C. the force of contraction of the atria during systole. d. the volume of blood being pumped during the contraction cycle

CHAI Q1: CHOOSE THE CORRECT AN 1. An ECG measures a. changes in electrical potential during the cardiac cycle b. Ca2+ concentration of the ventricles in diastole. C. the force of contraction of the atria during systole. d. the volume of blood being pumped during the contraction cycle

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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CHAPTER QUESTIONS a. changes in electrical potential during the cardiac cycle b. Ca2+ concentration of the ventricles in diastole. c. the force of contraction of the atria during systole. d. the volume of blood being pumped during the contraction cycle 1. An ECG measures 2. Which of the following is the correct sequence of events in the circulation of blood? a. Heart → arteries → arterioles → capillaries → venules → lymph→ heart b. Heart → arteries arterioles → capillaries → veins → venules → heart C. Heart → arteries arterioles → capillaries → venules → veins → heart d. Heart → arterioles→ arteries → capillaries → venules → veins → heart 3. Which of the following statements is not true? a. All arteries carry oxygenated blood. b. Both arteries and veins have a layer of smooth muscle. c. Both arteries and veins branch out into capillary beds. d. Both arteries and veins consists three layers of tissues. 4. Which pairing of structure and function is incorrect? a. Erythrocytes/oxygen transport b. Platelets/blood clotting c. Plasma/waste transport d. All of the choices are correct. 5. Blood clots are made of a. fibrin. b. fibrinogen. C. prothrombin. d. All of the choices are correct. 6. Systole is vitally important to heart function and begins in the heart with the a. activation of the AV node. b. activation of the SA node. C. opening of the voltage-gated potassium gates. d. opening of the semilunar valves. 82
Transcribed Image Text:CHAPTER QUESTIONS a. changes in electrical potential during the cardiac cycle b. Ca2+ concentration of the ventricles in diastole. c. the force of contraction of the atria during systole. d. the volume of blood being pumped during the contraction cycle 1. An ECG measures 2. Which of the following is the correct sequence of events in the circulation of blood? a. Heart → arteries → arterioles → capillaries → venules → lymph→ heart b. Heart → arteries arterioles → capillaries → veins → venules → heart C. Heart → arteries arterioles → capillaries → venules → veins → heart d. Heart → arterioles→ arteries → capillaries → venules → veins → heart 3. Which of the following statements is not true? a. All arteries carry oxygenated blood. b. Both arteries and veins have a layer of smooth muscle. c. Both arteries and veins branch out into capillary beds. d. Both arteries and veins consists three layers of tissues. 4. Which pairing of structure and function is incorrect? a. Erythrocytes/oxygen transport b. Platelets/blood clotting c. Plasma/waste transport d. All of the choices are correct. 5. Blood clots are made of a. fibrin. b. fibrinogen. C. prothrombin. d. All of the choices are correct. 6. Systole is vitally important to heart function and begins in the heart with the a. activation of the AV node. b. activation of the SA node. C. opening of the voltage-gated potassium gates. d. opening of the semilunar valves. 82
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