Essentials of Human Anatomy and Physiology (Custom)
15th Edition
ISBN: 9781269752862
Author: Marieb
Publisher: PEARSON
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Chapter 11, Problem 25SAE
Identify the components of the intrinsic conduction system and describe how they work to cause cardiac music contraction.
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Chapter 11 Solutions
Essentials of Human Anatomy and Physiology (Custom)
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 - More than one choice may apply. During atrial...Ch. 11 - More than one choice may apply. Isovolumetric...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 - Prob. 13MCCh. 11 - Prob. 14MCCh. 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 - Identify the components of the intrinsic...Ch. 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 - What are pre-capillary sphincters and vascular...Ch. 11 - Prob. 33SAECh. 11 - 34. In a fetus, the liver and lungs are almost...Ch. 11 - Explain why we are able to detect pulses at...Ch. 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 - 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. 48CAQCh. 11 - Stuart, a 49-year-old man, has been diagnosed with...Ch. 11 - Mr. Grimaldi was previously diagnosed as having a...Ch. 11 - Prob. 51CAQCh. 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
- Compare the action potentials of contractile cardiac muscle. autorhythmic cardiac muscle and skeletal muscle.arrow_forwardDescribe the redistribution of cardiac output during exercise to the CNS, coronary, splanchnic, cutaneous, and skeletal muscle vascular beds during sustained exercise (distance running).arrow_forwardDescribe the structural and functional characteristics of cardiac muscle tissue and the cardiac conduction system.arrow_forward
- Describe the mechanisms that increase the cardiac output during exercise and that increase the rate of blood flow to the heart and skeletal muscles.arrow_forwardBelow are drawings of three different action potentials. Two of these occur in the heart, and one occurs in skeletal muscle. Which one comes from a contractile cardiac muscle cell? A skeletal muscle cell? A cardiac pacemaker cell? For each one, state which ion is responsible for the depolarization phase and which ion is responsible for the repolarization phase.arrow_forwardDraw a ventricular muscle cell action potential.arrow_forward
- Diagram electrical conduction of the heart and discuss each component (SA node, AV node, etc). How does this dictate the fluidity of heart contraction? Why does the SA always start the conduction? What is the inherent rate of depolarization of the SA node (this means that if the nervous system was shut off what would resting bpm be)? If it is damaged what happens to the electrical conduction system?arrow_forwardDescribe the sequence of the cardiac conduction system.arrow_forwardDescribe the events leading up to contraction in a cardiac contractile cell. (Where does the stimulus to “contract” come from?)arrow_forward
- Cardiac pacemaker cells fıre an action potential similar to neurons. The influx of what ion is responsible for the prolonged depolarization after threshold has been reached in a cardiac muscle fiber? O C- O K+ O Mg+ O Ca 2+arrow_forwardThe conductance of which ion results in phase 2 characteristics in a ventricular myocyte action potential? Select one: Sodium Potassium Calcium Chloridearrow_forwardUsing information provided in the text, calculate the power generated by the right ventricle during (a) restful state; blood flow 5 liter/min, and (b) intense activity; blood flow 25 liter/min.arrow_forward
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