Fetal And Placental Tissues

Question 1

Amniotic fluid volume at 10 weeks

Answer 1

30 ml

Question 2

AF volume at 12 weeks

Answer 2

50 ml

Question 3

Amniotic fluid volume at 16 weeks

Answer 3

190 ml

Question 4

Amniotic fluid volume at 35 weeks

Answer 4

900 ml

Question 5

When does the amniotic fluid started to be decreased

Answer 5

> 35 weeks volume of amniotic fluid decreases

Question 6

Osmolality of the amniotic fluid is

Answer 6

275 mosm/l

Question 7

Fluid exchange in the amniotic fluid

Answer 7

500 ml /day

Question 8

Acidity of the amniotic fluid

Answer 8

Ph = acidic

Question 9

PO2 of the amniotic fluid

Answer 9

2-15 mmhg

Question 10

Amniotic fluid PCO2

Answer 10

50 -60. Mmhg

Question 11

Formation and clearance of the amniotic fluid in the 1st trimester depends on

Answer 11

Placenta
Fluid exchange occur through the transparent skin .

Question 12

Fetal skin keratenizes at which week of gestational age

Answer 12

At 22-25 weeks GA .

Question 13

Formation an clearance of amniotic fluid in the 2nd trimester depends on 4 things

Answer 13

Fetal swallowing
Fetal urine
Fetal lung secretion
Intamembranous placental

Question 14

Amount of lung secretions in the fetus / day

Answer 14

200-400 ml/day .

Question 15

Urine first enters the amniotic fluid at which week ga

Answer 15

At week 8-11 GA .

Question 16

Amount of urine produce at 25 weeks

Answer 16

110ml/kg/day

Question 17

Amount of urine produced at term

Answer 17

700-900ml /day

Question 18

When does the full development of renal system complete

Answer 18

Several months after birth

Question 19

Fetal swallowing start at which week

Answer 19

Fetal swallowing start at 12 weeks Ga

Question 20

Amount of fetal swallowing / day

Answer 20

250ml/day

Question 21

Amniotic fluid composition

Answer 21

1 alpha fetoprotein
2 bilirubin
No fin=bronegen in the AF

Question 22

Where is the highest levels of alpha fetoprotein
Af or fetal blood’

Answer 22

Levels of Alpha fetoprotein are lower in the AF than in the fetal blood

Question 23

Peak of amniotic fluid in the fetus of the alpha fetoprotein

Answer 23

10-12 weeks

Question 24

Bilirubin levels in the amniotic fluid start to decreas at which pregnancy period

Answer 24

It starts to decrease in the 3rd trimester .

Question 25

AF composition mainly
Cells
Hormones
Antibacterial
Others

Answer 25

Urine
GEN
Glial cells
Epithelial cells
None] embryonic stem cells
Hormones estrogen renin progesterone prolactin renin
Antibacterial
ZipL
Zinc interferon alpha
Peroxidase lysozymes

Others ; SABL , sphingomyelin , lecithin , bilirubin , albumin

Question 26

Glial cells found in the amniotic fluid at cases of

Answer 26

Renal diseases
NTD

Question 27

Epithelial cells present in the amniotic fluid

Answer 27

Lung
Dermis
Fibroblase

Question 28

Fetal membrane layers composed of

Answer 28

Inner most layer Amnion .
Outer most layer chorion .

Question 29

Amnion cavity is formed at which day

Answer 29

Amniotic cavity is formed at day 7 .

Question 30

Amniotic cavity layers

Answer 30

CBC FS
Cuboidal layer
Basements membrane
Compact layer
Fibroblast layer
Spongy layer

Question 31

Which layer of the amniotic cavity layers is remenant of extra embryonic celeum

Answer 31

The spongy layer

Question 32

Chorion is mad up of 4 layers mention all of them

Answer 32

CBRT
Cellular layer
Basement membrane
Reticular layer
Trophoblast layer

Question 33

Tidal volume of the fetal lung is

Answer 33

6ml/kg

Question 34

FRC of the fetal lung is

Answer 34

30 ml/kg

Question 35

Fetal breath

Answer 35

10 - 60ml