VCU DPT - Lifespan 1 (Critical/Sensitive Periods, Order of Development)

critical period of CNS

3 weeks GA - 16 weeks GA

sensitive period of CNS

16 weeks GA - 40 weeks GA

critical and sensitive periods of CNS

critical: 3-16 weeks GA

sensitive: 16-40 weeks GA

critical period of heart

3 - 6 weeks GA

sensitive period of heart

7-8 weeks GA

critical and sensitive period of heart

critical: 3-6 weeks GA

sensitive: 7-8 weeks GA

critical period of upper limbs

weeks 4-5 GA

sensitive period of upper limbs

weeks 6-8 GA

critical and sensitive period of upper limbs

Crit: weeks 4-5 GA

Sen: weeks 6-8 GA

critical period of lower limbs

weeks 4-5 GA

sensitive period of lower limbs

weeks 6-8 GA

critical and sensitive period of lower limbs

C: 4-5 weeks GA

S: 6-8 weeks GA

critical and sensitive period of:

- upper limbs

- lower limb

they are the SAME

C: 4-5 weeks GA

S: 6-8 weeks GA

eyes senstiive period

week 9 GA - week 40 GA

eyes critical period

week 4 GA - week 8 GA

eyes:

critical period

sensitive period

C: 4-8 week GA

S: week 9 GA - week 40 GA

what four body parts have sensitive periods that last all the way until full term

CNS

eyes

teeth

external genitalia

critical period of: teeth

GA weeks 6-8

sensitive period of: teeth

GA week 9 through GA week 40 (full term)

critical and sensitive period of: teeth

critical: weeks 6-8 GA

sensitive: weeks 9-40 GA

critical period of: palate

weeks 7-8 GA

sensitive period of: palate

week 9 GA

critical and sensitive period of: palate

critical: weeks 7-8 GA

sensitive: week 9 GA

critical period of: external genitalia

weeks 7-9 GA

sensitive period of: external genitalia

week 9 - full term (week 40) GA

critical and sensitive period of: external genitalia

critical: weeks 7-8 GA

sen: week 9 GA - week 40 GA

critical period of: ear

week 4 GA - week 9 GA

sensitive period of: ear

week 9 GA - week 16 GA

critical and sensitive period of: ear

crit: week 4 Ga - week 9 GA

sen: week 9 GA - week 16 GA

order these things in the order that they occur (embryonic period, weeks 2-8):

a) neural tube forming

b) heartbeat, tactile sense develops

c) fingers, toes, eyelids come around. head rounds

d) semicircular canals

e) limbs appear, optic pits

f) heart twists into 4 chambers

a

e

b

d

f

c

order these things in the order they occur (fetal period, weeks 8-16):

a) eyes and nose to midline

b) external genitalia

c) taste buds

d) limb buds

e) nasal plug dissapears, olfactory nerve

f) ossification centers

g) slow eye movement

b

d

c

e

f

g

a

order these things in the order they occur (fetal period, weeks 20-26):

a) ears formed and hearing develops, surfactant develops

b) eyelids separate and blink, finger/toenails

c) the point at which risk for neurodevelopment disability is at

a

b

c (time point is <26 weeks)

order these things in the order they occur (fetal period, weeks 26-40):

a) normal time period to be born

b) gyri develop

c) pulmonary development to breathe

d) taste develops

e) pupillary reflex, increased survival rate

f) orient to light, visual altertness

g) eye lids open, rapid eye maturation, rooting reflex

g

d

c

b

e

f

a

the lungs....

get surfactant starting at week ____

can breathe at week _____

have alevoli to exhcange gas at week _____

21

26

32

neural development....

primtive streak is at week ____

neural plate fuses into tube at week _____

gyri from through week ______

3

4

28

bones.....

day ______ sees limb bud appear

day ______ sees fingers or toes

weeks ______ sees ossification

28-30

54-55 (weeks 9-12)

weeks 13-16

order of sense developemtn

touch

vestib

smell

taste

hear

see