Match the number on the left corresponding to the text box in the description of

Question

Match the number on the left corresponding to the text box in the description of the full term placental barrier with the word, on the right, that best completes the statement in the description. Use a 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 the maternal hemoglobin and pass through the cytoplasmic membrane of a 3.0 in the 4.0. This oxygen molecule would then diffuse through the 5.D. cytoplasmic membrane of the 6.1, its cytoplasm, and then the 7.[lcytoplasmic membrane. Then the oxygen molecule must diffuse through the 8.1 lining the fetal 9.[1 that contains oxygen-poor blood. The the oxygen-rich fetal blood will leave the placenta via the umbilical 10.I. A. vein B. arteries C. syncytiotrophoblast D. maternal blood E. intervillous space F. maternal-side G. capillary H. fetal-side L. red blood cell J. endothelium 10

Explanation / Answer

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.

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