Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 25.2, Problem 1CC
If venous PO2 decreases as exercise intensity increases, what do you know about the PO2 of muscle cells as exercise intensity increases?
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Chapter 25 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 25.2 - If venous PO2 decreases as exercise intensity...Ch. 25.3 - In Figure 25.8b, why does the line for mean blood...Ch. 25.5 - The active vasodilator nerves to the skin secrete...Ch. 25 - Name the two muscle compounds that store energy in...Ch. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - What is meant by the term oxygen deficit, and how...Ch. 25 - Prob. 7RQ
Ch. 25 - In endurance events, body temperature can reach...Ch. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Match the following brain areas with the...Ch. 25 - Specify whether each of the following parameters...Ch. 25 - Why doesnt increased venous return during exercise...Ch. 25 - Diagram the three theories that explain why the...Ch. 25 - Prob. 17RQCh. 25 - Explain how exercise decreases blood glucose in...Ch. 25 - Prob. 19RQCh. 25 - Prob. 20RQCh. 25 - The following graph shows left ventricular...
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- Which one of the following parameters is primarily responsible for the differences in MAP observed between dynamic and static exercise? TPR O Venous return EDV O Ventricular contractility O Heart rate O Blood volumearrow_forwardThe oxygen consumed after strenuous exercise stops is significantly greater than the oxygen deficit and is termed excess postexercise oxygen consumption (EPOC). Why is so much more oxygen required after intense exercise?arrow_forwardExplain the role of the skeletal muscle pump in exercise performance.arrow_forward
- Differentiate the cross-bridge cycling resulting from increased cytosolic Ca2+ between smooth muscle and cardiac muscle fibers.arrow_forwardUsing the tension graph, explain why skeletal muscle can exhibit tetany (sustained contraction) but cardiac muscle cannot.arrow_forwardWhat is acute response to exercise?arrow_forward
- Which energy source varies the most during different intensities of exercise? What is the range of its percentage of energy expenditure?arrow_forwardMuscle hypertrophy training is catalyzed by which of the following? Mechanical tension, high reps, great pump Heavy weight, muscle damage, resistance bands Heavy weight, metabolic stress, post-workout carbs Mechanical tension, muscle damage, metabolic stressarrow_forwardIf ACh channels are opened on a muscle fiber that is held at +55 mV, which ion moves predominantly? In which direction does this ion move across the muscle cell membrane?arrow_forward
- During resistance exercise, three factors support muscle hypertrophy they include the following with the EXCEPTION of: muscle contraction hormonal modifications vascular adaptions immunological actionsarrow_forwardDraw a figure of oxygen consumption (L-min-¹) over time from resting to the start of exercise at a constant submaximal intensity. Label your axes, label steady state, and label the period of "oxygen deficit".arrow_forwardBased on your understanding of skeletal muscle fiber physiology, which of the following processes is NOT dependent on the use of ATP? O recovery stroke O Na+/K+ pumps O voltage-gated Ca2+ channels O muscle fiber relaxation none of the above Next « Previousarrow_forward
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