Essentials of Human Anatomy & Physiology (12th Edition)
12th Edition
ISBN: 9780134395326
Author: Elaine N. Marieb, Suzanne M. Keller
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 2MC
Given a volume of 150 ml at the end of diastole, a volume of 50 ml at the end of systole, and a heart rate of 60 bpm, the cardiac output is
a. 600 ml/min.
b. 6 liters/min.
c. 1200 ml/min.
d. 3 liters/min.
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Using the ECG recording provided below, how do we know that this extrasystole event (i.e., indicated by the arrow) is occurring in the ventricles and not the atria?
a. None of the options are correct
b. Extrasystole event is smaller in amplitude than the QRS complex
c.Event occurs after a T-wave
d.Large ECG amplitude compared with the P-wave
e.Event occurs after a P-wave
Within the T-P interval of the EKG...
a. The 2nd heart sound is heard
b. the semilunar valves are open
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d. Ventricular cardiomyocytes are relaxed
e. L-type calcium current is dominant in the ventricular cardiomyocytes
which of the following mechanisms contributes most to the deterioration of myocardial perfusion in patients with a progressively dilating left ventricle and a cycle of gradual decompensation.
A. decreasing left ventricular radius B. decreasing peripheral vascular resistance C. decreasing vestibular pressure D. increasing left ventricular wall tension E. increasing left ventricular wall thickness
Chapter 11 Solutions
Essentials of Human Anatomy & Physiology (12th Edition)
Ch. 11 - More than one choice may apply. Pulmonary veins...Ch. 11 - Given a volume of 150 ml at the end of diastole, a...Ch. 11 - Which of the following depolarizes next after the...Ch. 11 - During atrial systole, a. the atrial pressure...Ch. 11 - 5. Atrial repolarization coincides in time with...Ch. 11 - Soon after the onset of ventricular systole, the...Ch. 11 - The base of the heart is its ______ surface. a....Ch. 11 - 8. In comparing a parallel artery and vein, you...Ch. 11 - Prob. 9MCCh. 11 - Prob. 10MC
Ch. 11 - Prob. 11MCCh. 11 - 12. Which layer of the artery wall thickens most...Ch. 11 - Which of the following are associated with aging?...Ch. 11 - An increase in BP would be caused by all of the...Ch. 11 - The most external part of the pericardium is the...Ch. 11 - Prob. 16MCCh. 11 - Prob. 17MCCh. 11 - Prob. 18MCCh. 11 - 19. Draw a diagram of the heart showing the three...Ch. 11 - Prob. 20SAECh. 11 - Prob. 21SAECh. 11 - 22. Define systole and diastole.
Ch. 11 - Prob. 23SAECh. 11 - Prob. 24SAECh. 11 - Prob. 25SAECh. 11 - 26. Name three different factors that increase...Ch. 11 - Prob. 27SAECh. 11 - Describe the structure of capillary walls.Ch. 11 - Prob. 29SAECh. 11 - Name three factors that are important in promoting...Ch. 11 - Prob. 31SAECh. 11 - Trace a drop of blood from the left ventricle of...Ch. 11 - Prob. 33SAECh. 11 - 34. In a fetus, the liver and lungs are almost...Ch. 11 - Prob. 35SAECh. 11 - Prob. 36SAECh. 11 - Prob. 37SAECh. 11 - 38. Two elements determine blood pressure—the...Ch. 11 - Prob. 39SAECh. 11 - Prob. 40SAECh. 11 - Prob. 41SAECh. 11 - Explain why blood flow in arteries is pulsatile...Ch. 11 - Explain the relationship between the...Ch. 11 - 44. Which type of blood vessel is most important...Ch. 11 - Prob. 45SAECh. 11 - John is a 30-year-old man who is overweight and...Ch. 11 - 47. Mrs. Hamad, a middle-aged woman, is admitted...Ch. 11 - Hannah, a 14-year-old girl undergoing a physical...Ch. 11 - Prob. 49CTCh. 11 - Prob. 50CTCh. 11 - Mr. Grimaldi was previously diagnosed as having a...Ch. 11 - Prob. 52CTCh. 11 - The guards at the royal palace in London stand at...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Refer to the figure of the pressures in the cardiac cycle on the right side. Letters indicate time points and numbers indicate 2 different pressures. The pressure indicated by line #1 (in green) is.... A. Atrial pressure B. Pulmonary trunk/artery pressure C. Aortic pressure D. Ventricular pressurearrow_forwardAn 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.arrow_forwardDuring which of the following periods are the large elastic arteries distributing blood to smaller arteries downstream, and aortic BP is slowly falling? a. Ventricular systole b. Atrial systole c. Ventricular diastole d. Atrial diastolearrow_forward
- What two values are needed in order to calculate cardiac output (CO) for a ventricle? a. end-diastolic volume (EDV) and end-systolic volume (ESV) b. stroke volume (SV) and blood pressure (BP) c. stroke volume (SV) and heart rate (HR) d. heart rate (HR) and end-diastolic volume (EDarrow_forwarda. Only between cardiac cycles b. Ventricular diastole c. Ventricular systole d. Throughout the cardiac cyclearrow_forwardThe period between the filling of the ventricles and the opening of the semilunar valves in the cardiac cycle is called: A. Atrial Systole B. Isovolumetirc ventricular contraction C. Isovolumetric ventricular relaxation D. Passive ventricular fillingarrow_forward
- Which of the following is true of the EKG? A. Depolarization of the atria cannot be seen on the EKG B. Repolarization of the atria cannot be seen on the EKG. C. Depolorization of the ventricles cannot be seen on the EKG. D. Repolorazition of the ventricles cannot be seen on the EKG.arrow_forwardDuring which phase of the cardiac cycle are the semilunar valves open? Select one: a.atrial filling b.atrial systole c.ventricular systole d.open in 2 out of 3 phases e.ventricular fillingarrow_forwardSelect the correct one, Which of the following would not increase Cardiac Output? A. increase blood epinephrine concentration B. Increase Atrial Preload C. Increase Cardiac sarcoplasmic calcium concentration D. Increase Arterial Afterloadaarrow_forward
- which of the following will increase the total peripheral resistance a. low red blood cell cound b. high platelet count c. tachycardia d. vasoconstrictionarrow_forwardIdentify the TRUE statement (s). There may be several correct answers. A. An increased cardiac output is reflected in an elevated diastolic pressure.B. An increased cardiac output is reflected in a decreased diastolic pressure.C. An increase in the force of contraction produces an elevated systolic pressure.D. An increase in the force or ventricular contraction produces a decreased diastolic pressure.arrow_forwarda. Ventricular diastole b. Throughout the cardiac cycle c. Between cardiac cycles d. Ventricular systolearrow_forward
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