You've just stepped on the treadmill and are beginning to increase your speed. As you reach your maximum, which of the following values will NOT increase?
A. Body heat production
B. Oxygen extraction from the blood by muscles
C. Arterial PCO2
D. Minute ventilation
E. Oxygen delivery to muscles
Answer: C
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a. Relaxation. b. Pain. c. Spasm. d. Injury.
The formation of spindle fibers occurs during
A. anaphase. B. metaphase. C. telophase. D. prophase.
During the Cori cycle, in the liver
A) lactic acid is produced from glucose B) lactic acid is produced from pyruvic acid C) lactic acid is shuffled to muscle cells D) glucose is produced from lactic acid E) glucose is released from glycogen
What is the effect of decreased ventilation on the pH of body fluids?
A. The pH rises due to increased O2 levels. B. The pH is not influenced by ventilation. C. The pH rises due to retention of CO2. D. The pH drops due to retention of CO2.