chapter 6

Question 1

Is considered the basic units of the brain
-produced in the neural tube of developing embryo
-transmit electrical and chemical signals across the synapses
-formed by second trimester

Answer 1

Neuorons

Question 2

facilitate communication between neurons and guide neurons to their proper location once they’re finished forming in the neural tube

Answer 2

Glia nerve cells

Question 3

the highest brain centre; includes both hemispheres of the brain and fibres that connect them

Answer 3

cerebrum

Question 4

an outer layer of grey matter that controls sensory and motor processes, perception, and intellectual functioning

Answer 4

cerebral cortex

Question 5

involves preference for using one side of the body
-90% of adults are right handed therefore rely on their left hemisphere

Answer 5

• cerebral laterization

Question 6

process of coating neurons with myelin sheath
-occurs diff rates
-proceed rapidly after first years of life

• frontal cortex is not fully myelinated until adolescence

Answer 6

• myelinization

Question 7

motor development
-orphanage

Answer 7

Dennis, 1960. Maturation is necessary but not suffficient for the development of motor skills

Question 8

secular trend

Answer 8

a trend toward earlier maturation and greater body size now then in the past. (growing bigger -> hitting puberty quick”

Question 9

-insufficient protein and too few calories as infants
-baby is frail, wrinkled, wastes away

Answer 9

Maramus disease

Question 10

-insufficient protein but enough calories
-abdomen, face, and legs swell

Answer 10

Kwaschiorkor

Question 11

childhood ages 2-15 growth disorder
- despite adequate nutrition and physical care grow very slow
-linked to emotional deprivation

Answer 11

Deprivation dwarfism

Question 12

-early growth disorder
-no obv illness, some have trouble feeding
-caregivers tend to be impatient, aloof, abusive
-treatment causes infants to withdraw

Answer 12

nonorganic failure to thrive