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Flashcards in Development Deck (19):
1

SHH

limbs -- polarizing activity. AP patterning. CNS development. mutx--> holoprosencephaly

2

WNT-7

D-V organization. produced at end of developing limb

3

FGF

stimulates underlying mesoderm, lengthening of limbs

4

Day 0

fertilization, forming zygote

5

hCG secretion begins

within 1 week, after implantation of blastocyst

6

during week 2

bilaminar disc (epiblast, hypoblast)

7

week 3

trilaminar disc (gastrulation).
primitive streak, notocord, mesoderm, neural plate form

8

organognesis


Weeks 3-8
Most susceptible to teratogens

9

Neural tube closure

by week 4

10

Heart begins to beat

week 4

11

formation of limbs

week 4

12

fetal period

starts in week 8
initiation of movement

13

male/female genitalia

week 10

14

12 months

-stands, walks first steps, throws ball
- 2 finger pincer
- first words (other than mama/dada)
- separation anxiety, follows 1-step command with gesture

15

18 months

- runs, kicks ball
- builds tower of 2-4 clothes, removes clothing
- 10-25 word vocab, identifies >1 body part
-understands "mine". pretend play

16

2 years

-walks up/down stairs with both feet on each step. jumps.
-builds 6-cube tower, copies a line, turns pages
-50+ word vocab. 2-word phrases
- 2 step command, parallel play, toilet training begins

17

3 years

- up/down stairs with one foot on each step. tricycle
- copies circle, uses utensils.
-3 word sentences. speech 75% intelligible.
-knows age/gender, imaginative play

18

4 years

- balances and hops on 1 food
- copies a square
-identifies colors, speech 100% intelligible
-cooperative play

19

5 years

- skips, walks backward
- copies a triangle, ties shoelaces, independent dressing/bathing, prints letters
- counts to 10. 5-word sentences
-has friends, completes toilet trainings