Passage VII

Figure 1 shows how, on average, internal head temperature and skin temperature affect heat production (in calories per second, cal/sec) in humans.

Figure 2 shows how, on average, infernal head temperature and skin temperature affect evaporative heat loss (heat lost through the evaporation of perspiration) in humans.

Figures adapted from Arthur C. Guyton, M.D., Textbook of Medical Physiology. ©1991 by W. B. Saunders Company.

37. According to Figure 1, at a skin temperature of 20°C, which of the following changes in internal head temperature will cause the greatest decrease in head production?

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

Look at figure 1, look at the skin temperature curve at 20°C, when the abscissa is 37°C-37.2°C, the ordinate heat production drops the fastest