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1.) Match the describion related to the amniotic fluid on the left with the cate

ID: 3476923 • Letter: 1

Question

1.) Match the describion related to the amniotic fluid on the left with the category on the right. One selection must be used twice.

___ Fetal interstitial fluid is a source of amniotic fluid. A. significance

___ Water content of amniotic fluid changes every 3 hours. B. exchange

___ Ventillatory preparedness for air breathing. C. composition

___ Fetal epidermal cells are desquamated. D. composition

2. Match the letters corresponding to the text box in the description of the full term placental barrier with the words at the bottom that best completes the statement in the description. Use word only once. "Oxygen rich maternal blood exits the endometrial 1.[ ] entering the 2. [ ] and circulating around the chorionic villi. An oxygen molecule would be released from th maternal hemoglobin and pass through the cytoplasmic membrane of a 3. [ ] in the 4. [ ]. This oxygen molecule would then diffuse through the 5. [ ], cytoplasmic membrane of the 6. [ ], its cytoplasm, and then the 7. [ ] cytoplasmic membrane. Then the oxygen molecule must diffuse through the 8. [ ] lining the fetal 9. [ ] that contains oxygen-poor blood. The oxygen-rich fetal blood will leave the placenta via the umbillical 10. [ ].

A. maternal-side

B. intervillous space

C. red blood cell

D. endothelium

E. arteries

F. vein

G. capillary

H. maternal blood

I. fetal-side

J. syncytiotrophoblast

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Explanation / Answer

1.

Fetal interstitial fluid is a source of amniotic fluid: composition

Water content of amniotic fluid changes every 3 hours: composition

Ventillatory preparedness for air-breathing: exchange

Fetal epidermal cells are desquamated.: significance

2.

Oxygen rich maternal blood exits the endometrial arteries entering the intervillous space and circulating around the chronic villi. An oxygen molecule would be released from the maternal hemoglobin and pass through the cytoplasmic membrane of a red blood cell in the maternal blood. This oxygen molecule would then diffuse through the maternal side cytoplasmic membrane of the syncytiotrophoblast, its cytoplasm and then the fetal side cytoplasmic membrane. Then the oxygen molecule must diffuse through the endothelium lining in the fetal capillary that contains oxygen poor blood. Then the oxygen rich fetal blood will leave the placenta via the umbilical vein.