Groups of neurons or structures that are connected within the nervous system are called__________.
A. synaptic vesicles
B. neuronal bridges
C. neural networks
D. fused conduits
Answer: C
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Which of the following statements is true of neurotransmitters?
A) Neurotransmitters have identical chemical structures that can fit into any receptor site. B) "Loose" neurotransmitters are held by synapses before being released into the synaptic fluid. C) Once released by the synaptic vesicles, all the molecules of a neurotransmitter find their way into receptor sites. D) "Loose" neurotransmitters are either broken down or reabsorbed by the axon terminal.
Research on the effects of stress on the immune system suggests which of the following?
a) The immune system is not affected by stress. b) Only certain types of stressors affect the immune system. c) Suppression of immune system functioning by stress always ends immediately after the stressful period ends. d) Suppression of immune system functioning by stress can apparently continue even after the stress itself is over.
"Number of items answered correctly on an achievement test" defines what type of score on that test?
A. a cut-off score B. a raw score C. a percentile rank D. a standard score
Men tend to report a desire for a more __________ body shape than their own perceived level
a) defined b) large c) thin d) muscular