Placentation

Question 1

Embryonic Implantation

Answer 1

Central (carnivore and ungulate)
Eccentric (rodent)
Interstitial (primate human)

Question 2

Embryonic annexes

Answer 2

Vetelline vesicle (yolk)
Amnios
Chorion
Allantios

Question 3

Vitelline vesicle (yolk)

Answer 3

Endoderm+splachnopleura
Nutrition function (nutriment)

Question 4

Amnios

Answer 4

Ectoderm+ somatopleura
Protect amnyotic fluid

Question 5

Chorion

Answer 5

trophoblast somatopleura
help forming placenta

Question 6

Allantois

Answer 6

endoderm + splachnopleura
Breath function remove waste absorb

Question 7

Uterine/ Maternal placenta

Answer 7

Modified uterine mucosa

Question 8

Fetal placenta

Answer 8

Chorionic vili:
Chorion frondosum
Chorion laeve

Question 9

Choriovotelline placenta

Answer 9

destroyed to give the chorioallantois placenta

Question 10

5 type of placenta

Answer 10

complete diffuse
incomplete diffuse
cotyledonary
zonary
discoidal

Question 11

Chorion diffuse

Answer 11

Equine
chorionic frondosum

Question 12

Incomplete Diffuse

Answer 12

Pig
Smooth chorion and chorion frondosum

Question 13

Cotyledonary

Answer 13

Cow goat sheep
Cotyledon (Chorion frondosum) + Caruncle (maternal side of the placenta) =
Placentome

Question 14

Zonary

Answer 14

Carnivores
Band (chorion frondosum)
Rest chorion leave

Question 15

Discoidal

Answer 15

Human monkey rodent
Chrion frondosum and smooth chorion

Question 16

Histologycal classification (5)

Answer 16

Epitheliochorial
Syndesmochorial
Endotheliochorial
Haemochondrial

Question 17

Epitheliochorial

Answer 17

Horse, pig, cow, sheep, goat
6 cell layers
3 fetal: endo, c t, epi
3 mother: epi, ct, endo

Question 18

Sydesnochorial

Answer 18

Sheep Goat
5 cell layers
3 fetal: endo, ct, epi
2 mother: ct, endo

Question 19

Endotheliochondrial

Answer 19

Sheep and goat
5 cell layers
3 fetal: endo, ct , epi
1 mother: endo

Question 20

Hemochorial

Answer 20

Rodent monkey human
3 fetal: endo, ct , epi
contact blood mother

Question 21

Deciduate mucosa destruction

Answer 21

Fetal + Maternal ejected
BLEEDING
carnivore, human, rodent

Question 22

Adeciduate mucosa destruction

Answer 22

Fetal tissue ejected
NO BLEEDING
equine, ruminant, pig

Question 23

Gestation Equine

Answer 23

11 m

Question 24

Gestation Cat And Dog

Answer 24

60 63

Question 25

Gestation cows + sheep and goat

Answer 25

9 month 5month

Question 26

Gestation

Answer 26

3m 3w 3d

Question 27

Fetal period Changes

Answer 27

Organ tissue development
Nutrition and Fetal metabolism
Fetal growth

Question 28

Birth Changes

Answer 28

Cardiorespiratory
Thermoregulation
Immunology

Question 29

Mechanisms and processes interfering during development

Answer 29

-Cellular differentiation
-Patterning
-Cell migration
-Growth
-Cell death

Question 30

Cellular differenciation

Answer 30

Process by which a less specialized cell become a more specialized cell type

Question 31

Patterning

Answer 31

Embryonic cells organize into tissue or organs
Hox gene

Question 32

Cell migration

Answer 32

mouvement from a group of cell to a place

Question 33

Growth

Answer 33

hypertrophy (increase cell size)
hyperplasia (increase cell nb)
steroid and hormones : stimulate growth

Question 34

Cell death

Answer 34

Apoptosis (natural death)
Necrosis (premature death)

Question 35

Teratology

Answer 35

Science of congenital disorder

Question 36

Cause teratology

Answer 36

Genetic and chrs origin
environmental cause

Question 37

Myeloschisis

Answer 37

spinal cord exposed

Question 38

Excencephalia

Answer 38

Brain outside the skull

Question 39

Myeloschisis

Answer 39

Spinal cord exposed

Question 40

Exencephalia

Answer 40

Brain outside the Skull

Question 41

Meningoencefalocele

Answer 41

Abnormal sac of fluid, brain tissue and meninge that extend throughy a defect in the skull

Question 42

Syringomyelia

Answer 42

Cavity full of liquid in the spinal cord