Which of the following terms refers to the fatty insulation that makes nerve impulses travel faster?
A. Myelin sheath
B. Cephalin
C. Choline
D. Plasmalogen
Answer: A
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Although slower than an action potential, synaptic transmission is still relatively fast because ____
a. the synaptic cleft is very narrow b. sodium ions are transported quickly c. neurotransmitters diffuse faster than electricity d. EPSPs travel faster than IPSPs
Bickering between parents and teenagers
usually concerns politics and religion. is a signal of pathology. usually concerns clothes and personal habits. increases steadily between the ages of 12 and 19.
A single-sentence definition of psychology may be misleading because:
A. It is very difficult to study the mind and behavior scientifically B. Psychology is narrower , more specific field than a general definition might suggest C. Psychologists disagree on how broad psychology should really be D. The discipline of psychology really has no core or center
A general sensitivity to positive, rewarding stimuli defines a(n) ________temperament
a. approach b. avoidance c. easy d. difficult