Most college students in the U.S. probably think of football or basketball when "sports" are mentioned, rather than soccer or luge. Thus, football and basketball would serve as ________ for sports

The gate-control theory of pain suggests that __________

a) the pain signals must pass through a kind of "gate" located in the spinal cord. b) the skin receptors act as a gate for the pain sensation. c) the cortex blocks pain unless released by substance P. d) the gate is a physical structure that blocks pain signals.

The carbohydrate reservoir in the liver is primarily reserved for use

a. by the central nervous system. b. by the liver. c. by the muscles. d. in the support of nonshivering thermogenesis. e. in general metabolism.