A reflex is a conscious, voluntary response to a stimulus.
a. true
b. false
Ans: b. false
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Which term means toward the head?
A. Cephalad B. Superior C. Caudal D. Both a and b E. Both a and c
Which of the following descriptors is false regarding enzymes?
A) They are proteins. B) They function as biological catalysts. C) They lower the activation energy required for a reaction. D) They affect only the rate of a chemical reaction. E) They are consumed during the reaction.
Each of the following changes will result in increased blood flow to a tissue except
A) increased hematocrit. B) increased vessel diameter. C) increased blood pressure. D) decreased peripheral resistance. E) relaxation of precapillary sphincters.
Summation is increased force output by a muscle when
A. receiving many stimuli in rapid succession. B. there is a buildup of ATP. C. the muscle stretches beyond rest length. D. all fibers contract synchronously.