Research on abnormal, age-related structural changes in neurons shows that
a. neurons are lost by the tens of thousands each year.
b. a pattern of both loss and growth appears to be the case.
c. there is no question that the main issue is dendritic loss.
d. it turns out that there are few changes in neurons.
Question 2
Which of the following is associated with abnormal brain aging?
a. losses greatly outnumber gains before very old age
b. small numbers of neuritic plaques
c. significant changes in synaptic configuration
d. small declines in GABA
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