Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 44.3, Problem 4SB
Describe the electrical events that occur during the cardiac cyclein a mammalian heart.
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Chapter 44 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 44.1 - What are the three basic features of animal...Ch. 44.1 - Prob. 2SBCh. 44.1 - Prob. 3SBCh. 44.1 - Prob. 4SBCh. 44.2 - Outline the life cycle of an erythrocyte.Ch. 44.2 - Prob. 2SBCh. 44.2 - Prob. 3SBCh. 44.3 - Prob. 1SBCh. 44.3 - Prob. 2SBCh. 44.3 - How do neurogenic and myogenic hearts differ?
Ch. 44.3 - Describe the electrical events that occur during...Ch. 44.4 - Prob. 1SBCh. 44.4 - Prob. 2SBCh. 44.4 - Prob. 3SBCh. 44.5 - Prob. 1SBCh. 44.5 - Prob. 2SBCh. 44.5 - Prob. 3SBCh. 44.6 - Prob. 1SBCh. 44 - Prob. 1TYKCh. 44 - Prob. 2TYKCh. 44 - Prob. 3TYKCh. 44 - A characteristic of blood circulation through or...Ch. 44 - The heartbeat includes: a. the systole when the...Ch. 44 - Keeping the mammalian cardiac cycle balanced...Ch. 44 - Prob. 7TYKCh. 44 - Characteristics of veins and venules are: a. thick...Ch. 44 - Prob. 9TYKCh. 44 - Prob. 10TYKCh. 44 - Prob. 11TYKCh. 44 - Prob. 12TYKCh. 44 - Prob. 13TYKCh. 44 - Prob. 15TYKCh. 44 - Nifedipine is an antihypertension medication that...Ch. 44 - Prob. 2ITDCh. 44 - Nifedipine is an antihypertension medication that...
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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
- Why does the mammalian heart have 2 pumping chambers? What is the purpose?arrow_forwardExplain the origin and conduction of the excitation that leads to a heart contraction. Why is the vertebrate heart said to be myogenic? If the heart is myogenic, how do you account for alterations in rate of the heartbeat?arrow_forwardDescribe two mechanisms by which the cardiac output of an animal’s heart can be adjusted and indicate which is more important for increasing cardiac output in mammals and which is more important in fish.arrow_forward
- Describe the structure of the heart of a mammalarrow_forwardDescribe all the events (steps) that occur during a cardiac cycle for mammals (organisms with a double circulation). How does this cycle contribute to metabolic homeostasis for our cells, and what is the purpose of the valves?arrow_forwardexplain the cardiac cycle and how electrical impulses are conducted through the human heart?arrow_forward
- Explain, using diagrams where appropriate, the sequence of events in a cardiac cyclearrow_forwardlist in sequence the components of the elctrical conducting system of the human heartarrow_forwardDescribe how the four chambers of the fish heart function and the principal limitation of this design.arrow_forward
- Explain how the conduction pathway in the heart co-ordinates the different stages of the cardiac cyclearrow_forwardTrace and describe the formation of postnatal heart structuresfrom the primitive heart tubearrow_forwardHearts are vascular pumps, but the myocardium also needs an oxygen supply. Use a comparative approach to discuss different solutions to this problem in mammals and birds; in teleost fish; and in tunas, salmonid fish, and sharks. Draw the structure of spongy and compact myocardia in relation to their vascular supply.arrow_forward
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