Chapter 7: Infant, Child, and Adolescent Brain

Question 1

schizophrenia may come from

Answer 1

pathways in the brain not being formed correctly

Question 2

average weight of a newborn baby’s brain

Answer 2

370 grams

Question 3

weight of adult brain

Answer 3

3 pounds

Question 4

neurons in human brain

Answer 4

86 billion neurons

Question 5

the rate at which a baby’s brain continues to grow

Answer 5

1 percent per day

Question 6

fastest growing region in the baby’s brain

Answer 6

cerebellum

Question 7

brain region with the most neurons

Answer 7

cerebellum

Question 8

maturing of cells

Answer 8

differentiating

Question 9

by what percent does the number of neurons increase by in the first months of life

Answer 9

23-30%

Question 10

making of synapses

Answer 10

synaptogenesis

Question 11

myelination is provided by

Answer 11

oligodendrocytes

Question 12

when is a child’s brain almost adult

Answer 12

5 years old

Question 13

connections between neurons

Answer 13

synaptic density

Question 14

who has more synapses: 2-year-old or adult

Answer 14

2 year old

Question 15

reducing the amount of synapses

Answer 15

synaptic prunning

Question 16

more synaptic prunning occurs in the

Answer 16

teenage brain

Question 17

longitudinal studies

Answer 17

earlier life and later life are monitored

Question 18

MRI

Answer 18

magnetic resonance imaging

Question 19

growth of corpus callosum is enhanced in

Answer 19

adolescence

Question 20

plasticity

Answer 20

the ability of the brain to modify itself and adapt to changes