Ch 29- Prenatal Development

Helpfulness: 0
Set Details Share
created 8 years ago by chemistry_goo
85 views
Grade levels:
9th grade, 10th grade, 11th grade, 12th grade, College: First year, College: Second year, College: Third year, College: Fourth year
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

Prenatal Development

change in genetic activity
(conception to birth)

2

Granulosa cell

what cell influences prenatal development?

3

Cytoplasmic Composition

during prenatal development what influences a specific difference in genetic activity

4

Daughter cells

after cell division what can influence one another

5

40%

what % of embros survive first trimester

6

Cleavage

rapid cell division without cellular growth
development of blastocyst

7

blastocyst

what does cleavage cell develop into

8

Implantation

attachment of blastocyst to endometrium

9

Placentation

formation of placenta

10

Embryogenesis

formation of viable embryo

11

Cleavage, Implantation, Placentation, Emybryogenesis

list in order the 4 stages occur during the 12 weeks of the first trimester?

12

Glycoproteins

protein aids in adherence and provides window of implatation

13

Apical protrusion, Glycoproteins release

what 2 things does the uterus do to prepare of implantation?

14

Trophoblast contact endometrium

rapid divid for several layers, cell membrane disappears

15

Lacunae

cell collects endometrial blood

16

Syncytial trophoblast

after trophoblast contact endometrium cell membrane disappears to form

17

Syncytial Trophoblast

creates pocket for development
lacunae collect endometrial blood
villi extend into endometrium

18

Chorion

extra embryonic mesoderm become _____ as cells migrate outward to form placenta

19

Chorion

develop chorionic villi

20

Chorionic villi

richly vascularized, join endometrial cells to help form placenta

21

Gastrulation

forms 3 distinct germ layers, creation of amniotic sac

22

Ectoderm, Endoderm, Mesoderm

3 germ layers formed during gastrulation

23

Amnion

ectoderm + mesoderm
cushions and protects embryo

24

Allantois

endoderm + mesoderm
portion gives rise to urinary bladder

25

Chorion

mesoderm + trophoblast
chorionic villi of placenta
exchange with maternal circulation

26

Embryogenesis

begins shortly after gastrulation
followed by organogenesis

27

Organogenesis

fromation of organs, neurulation

28

Neurulation

differentiation to form CNS
induce by notochord (mesodermal cells)
ectoderm migrates inward

29

Endodermal Specialization

___ layer undercuts and edges to come together to form gut

30

Mesodermal Specialization

notochord prominent in establishment of CNS, development of somites

31

Somites

become muscles, vertebrae and skin

32

Second and Third Trimester

organ, grows and get ready to perform jobs, fetus grows

33

46

a zygote has how many chromosomes?

34

30 hours

how long does first cleavage from after fertilization begins

35

amniotic sac

a fluid-filled sac that cushions and protects a developing embryo and fetus in the uterus

36

Notochord

mesodermal cells form