MCAT Question A Day - 7/5/14 - Answer!
Which of the following hormonal and physiologic effects of stress would NOT be expected in a marathoner in the last mile of a marathon?
A. Increased glucagon secretion
B. Increased heart rate
C. Decreased ACTH secretion
D. Decreased blood flow to the small intestine
C is correct. Glucagon increases blood sugar, a good thing if you are running a marathon. An increased heart rate and sympathetic blood shunting might similarly be expected in someone who had just run 25 miles.
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C is correct. Glucagon increases blood sugar, a good thing if you are running a marathon. An increased heart rate and sympathetic blood shunting might similarly be expected in someone who had just run 25 miles.
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