Skip to main content
United States
Jump To
Register or Log In
Register or Log In
Instructors
Browse Products
Getting Started
Support
Students
Browse Products
Getting Started
Support
Back to top
Self-test questions: Chapter 38
Return to Human Physiology 5e - student resources
Self-test questions: Chapter 38
Quiz Content
*
not completed
.
At rest, the skeletal muscles account for around half of the oxygen taken up by the body.
True
correct
incorrect
False
correct
incorrect
*
not completed
.
In severe exercise the oxygen consumption can exceed 2 l min-1.
True
correct
incorrect
False
correct
incorrect
*
not completed
.
The SI unit of energy or work is the joule.
True
correct
incorrect
False
correct
incorrect
*
not completed
.
The proportion of aerobic and anaerobic metabolism is independent of the severity and duration of the exercise.
True
correct
incorrect
False
correct
incorrect
*
not completed
.
Concerning metabolism during exercise:
Fats are the main source of energy during exercise.
correct
incorrect
The contribution made by anaerobic exercise increases during prolonged exercise.
correct
incorrect
Carbohydrates provide the main source of energy in exercise.
correct
incorrect
Plasma glucose falls significantly during a bout of heavy work lasting for 2 hours.
correct
incorrect
*
not completed
.
Regarding circulatory adjustments during exercise:
The cardiac output increases more than tenfold in severe exercise.
correct
incorrect
The increase in cardiac output during exercise is mainly due to an increase in stroke volume.
correct
incorrect
The stroke volume increases in exercise despite a smaller end-diastolic volume.
correct
incorrect
In severe exercise the mean arterial pressure is unchanged because diastolic pressure falls.
correct
incorrect
*
not completed
.
Which of the following are correct statements regarding the respiratory adjustments seen in exercise? Please select all that apply.
The activity of the joint receptors is an important factor driving the increase in ventilation.
correct
incorrect
During exercise the arterial PCO
2
rises significantly.
correct
incorrect
As the intensity of exercise increases the arterio-venous difference in oxygen content becomes wider.
correct
incorrect
During exercise the arterial PO
2
falls.
correct
incorrect
Exit Quiz
Next Question
Review & Submit
Submit Quiz
Reset
Are you sure?
You have some unanswered questions. Do you really want to submit?
Printed from , all rights reserved. © Oxford University Press, 2023
Select your Country
×