Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Textbook Question
Chapter 17, Problem 14CYU
During the cardiac cycle, there are two periods when all four valves are closed. Name these two periods.
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During the cardiac cycle, there are two periods when all four valves are closed. Name these two periods.
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In a normal cardiac cycle, what two chambers of the heart contract first?
Chapter 17 Solutions
Anatomy & Physiology
Ch. 17 - The heart is in the mediastinum. Just what is the...Ch. 17 - From inside to outside, list the layers of the...Ch. 17 - What is the purpose of the serous fluid inside the...Ch. 17 - What is the function of the papillary muscles and...Ch. 17 - Which side of the heart acts as the pulmonary...Ch. 17 - Which of the following statements are true? (a)...Ch. 17 - Prob. 7CYUCh. 17 - For each of the following, state whether it...Ch. 17 - Cardiac muscle cannot go into tetany. Why?Ch. 17 - Which part of the intrinsic conduction system...
Ch. 17 - Describe the electrical event in the heart that...Ch. 17 - The second heart sound is associated with the...Ch. 17 - If the mitral valve were insufficient, would you...Ch. 17 - During the cardiac cycle, there are two periods...Ch. 17 - Prob. 15CYUCh. 17 - What problem of cardiac output might ensue if the...Ch. 17 - When the semilunar valves are open, which of the...Ch. 17 - The portion of the intrinsic conduction system...Ch. 17 - An ECG provides information about (a) cardiac...Ch. 17 - The sequence of contraction of the heart chambers...Ch. 17 - The fact that the left ventricular wall is thicker...Ch. 17 - Prob. 6RQCh. 17 - In the heart, which of the following apply? (1)...Ch. 17 - The activity of the heart depends on intrinsic...Ch. 17 - Freshly oxygenated blood is first received by the...Ch. 17 - Describe the location and position of the heart in...Ch. 17 - Describe the pericardium and distinguish between...Ch. 17 - Trace one drop of blood from the time it enters...Ch. 17 - (a) Describe how heart contraction and relaxation...Ch. 17 - The refractory period of cardiac muscle is much...Ch. 17 - (a) Name the elements of the intrinsic conduction...Ch. 17 - Draw a normal ECG pattern. Label and explain the...Ch. 17 - Define cardiac cycle, and follow the events of one...Ch. 17 - What is cardiac output, and how is it calculated?Ch. 17 - Discuss how the Frank-Starling law of the heart...Ch. 17 - Prob. 1CCSCh. 17 - Prob. 2CCSCh. 17 - Prob. 3CCSCh. 17 - Prob. 4CCSCh. 17 - Prob. 5CCSCh. 17 - Prob. 6CCS
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- Describe the cardiac cycle.arrow_forwardPREDICT A patients mitral valve (left AV valve) does not close completely at the beginning of ventricular systole. What effect would this have on the cardiac cycle?arrow_forwardThe cardiac cycle includes all the events associated with the flow of blood through the heart during a single complete heartbeat. Indicate if the following statements are True/False. When ventricular pressure exceeds atrial pressure, the atrioventricular valves open.arrow_forward
- The cardiac cycle includes all the events associated with the flow of blood through the heart during a single complete heartbeat. Indicate if the following statements are True/False. End-diastolic volume is attained after atrial systole.arrow_forwardThe cardiac cycle includes all the events associated with the flow of blood through the heart during a single complete heartbeat. Indicate if the following statements are True/False. Before atrial systole, the ventricles are empty.arrow_forwardThe cardiac cycle includes all the events associated with the flow of blood through the heart during a single complete heartbeat. Indicate if the following statements are True/False. During the isovolumetric periods there is no change in volume.arrow_forward
- The cardiac cycle includes all the events associated with the flow of blood through the heart during a single complete heartbeat. Indicate if the following statements are True/False. The duration of systole exceeds that of the diastole.arrow_forwardThe cardiac cycle includes all the events associated with the flow of blood through the heart during a single complete heartbeat. Indicate if the following statements are True/False. ESV represents the minimum ventricular volume.arrow_forwardWhat valve defect(s) would be indicated by the following sequence of heart sounds: lub-whistle-dup-gurgle?arrow_forward
- ____ is the contractile phase of the cardiac cycle and _____ is the relaxation phase of the cardiac cyclearrow_forwardThe cardiac cycle includes all the events associated with the flow of blood through the heart during a single complete heartbeat. Indicate if the following statements are True/False. During rapid filling, arterial pressure exceeds ventricular pressure.arrow_forwardIn a patient with a ventricular septal defect, blood is ejected from the left ventricle into the right ventricle during isovolumic contraction phase of the cardiac cycle. Which pressure volume loop from the left ventricle is most likely from a patient with a ventricular septal defect? The dashed line is a normal loop for reference in all figures. A 120 B 120 C 120- D 120- 75 50- 25 50 100 Left Ventricular Vol (mL) 75- 50 25 75+ 50+ 25+ 150 50 100 150 50 100 150 Left Ventricular Vol (mL) Left Ventricular Vol (mL) 75+ 50+ 25+ 50 100 150 Left Ventricular Vol (mL) -000arrow_forward
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