Which of the following factors does not directly affect breathing rate?
A) Partial pressure of oxygen in body fluids.
B) Degree of lung tissue stretch
C) pH
D) Partial pressure of carbon dioxide in body fluids.
C
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Which of the following organs contains the control center for the feedback system that regulates blood pressure?
a) skin b) arteries c) brain d) heart e) pituitary gland
Which type of stretching demonstrates greater range of motion?
A. active stretching B. passive stretching C. A and B are equal D. need more information
Several things happen to inhaled air in a process called conditioning. Select the exception.
A. The air is cooled. B. The air becomes turbulent. C. The air is humidified. D. The air is cleansed. E. The air is moistened.
Which correctly describes the heart's apex?
A. Projects slightly posteroinferiorly toward the midline of the body B. Projects slightly posteroinferiorly toward the right side of the body C. Projects slightly anteroinferiorly toward the left side of the body D. Projects slightly posteroinferiorly toward the left side of the body E. Projects slightly anteroinferiorly toward the right side of the body