Wanda is concerned that her son, Max, will be in pain during his circumcision. You can tell Wanda that
A) newborn males do not experience much pain during circumcision.
B) offering a nipple that delivers a sugar solution reduces discomfort during circumcision.
C) local anesthetics cannot be used during newborn circumcisions because they elevate the heart rate.
D) local anesthetics can actually cause increased pain during minor procedures like circumcision.
Answer: B
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Sensory and motor messages that allow you to pick up your pen are transmitted by the
a. afferent and efferent nerves. c. autonomic nervous system. b. peripheral nervous system. d. both a and b
A professor was interested in whether caffeine affected test performance. To test this possibility, he gave students a test and asked them whether they had consumed caffeine in the hour before the test. He then compared the performance of those students who had taken caffeine to those who had not. Why is this not a true experiment?
a. There are not two levels of the independent variables. b. Participants were not randomly assigned to groups. c. The study was not performed in the laboratory. d. The study lacks external validity.
The saclike structures found inside the axon terminals containing chemicals are called _____
A) axon terminals B) synapses C) synaptic vesicles D) receptor sites
During the ____ stage of friendship, the focus is on the relationship rather than on the individuals separately. Friendship is viewed as providing mutual support over a long period of time
a. momentary physical c. autonomous and interdependence b. fair-weather cooperation d. intimate and mutual sharing