Brain growth is especially dramatic during __________, when the brain more than doubles in size.
A) the first year
B) the second year
C) middle childhood
D) adolescence
Question 2Coating the neural fibers with an insulating fatty sheath during the process of __________ improves the efficiency of message transfer.
A) myelination
B) neuroimaging
C) synaptic pruning
D) neurotransmission
Question 3__________ are responsible for myelination.
A) Neurons
B) Neurotransmitters
C) Glial cells
D) Synapses
Question 4About half the brains volume is made up of __________ cells.
A) red blood
B) white blood
C) stem
D) glial
Question 5Stimulation in Hillarys brain resulted in a massive overabundance of synapses, many of which served identical functions. Neurons that were seldom stimulated lost their synapses in a process called __________.
A) myelination
B) synaptic pruning
C) neuroimaging
D) neurotransmission
Question 6The __________ is among the last regions to attain adult levels of synaptic connections.
A) prefrontal cortex
B) visual area of the cerebral cortex
C) language area of the cerebral cortex
D) auditory area of the cerebral cortex
Question 7As neurons form connections, stimulation __________.
A) becomes unnecessary
B) results in fewer and fewer synapses
C) becomes vital to their survival
D) causes synaptic pruning
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