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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- Unlike skeletal muscle, cardiac muscle doesn’t undergo tetany. Explain how this is achieved and why is this necessary?arrow_forwardExplain how the target heart rate (THR) helps adjust exercise intensity in times of high heat, humidity, or while at altitude.arrow_forwardIn addition to cardio-respiratory endurance_____ endurance can be built up by participating in aerobic exercise.arrow_forward
- If someone is on a heart-rate limiting medication, what is the best way to track exertion to ensure safety? Karvonen method Just ask questions Measure lactate threshold Rating of perceived exertionarrow_forwardThe effect of exercise upon the redistribution of blood pulse rate and ventilation changesarrow_forwardCompare heart rate and blood pressure responses to arm and leg work at the same oxygen uptake. What factors might explain the observed differences?arrow_forward
- Outline the circulatory responses to various types of exercise.arrow_forwardWhy is a high resting BP considered a risk for exercise testing? Based on your knowledge of BP responses to exercise, what effect would high resting BP have on the myocardium when a person reaches heavy and maximal levels of exercise? (Refer to RPP in your response)arrow_forwardDiscuss several possible reasons why blood lactate begins to rise rapidly during incremental exercise.arrow_forward
- If cardiac output is 16L/min during jogging, and 25% of total blood flow is being diverted to skeletal muscle, how much blood is being delivered to skeletal muscle in L/min? a. 2 b. 5 c. 6 d. 1 e. 4 f. 3arrow_forwardDuring heavy exercise, how much cardiac output may increase?arrow_forwardCan cardiac muscle exhibit (normally or under experimental conditions) summation or complete tetanus as does skeletal muscle? Why not? (highlight the main answer)arrow_forward
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