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placental barrier

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Wikipedia 0.01 sec.
placental barrier [plə′sent·əl ′bar·ē·ər]
(embryology)
The tissues intervening between the maternal and the fetal blood of the placenta, which prevent or hinder certain substances or organisms from passing from mother to fetus.
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Another possible explanation could be that the influenza virus would have crossed the placental barrier, causing some foetuses to suffer a cerebral infection.
Study links prenatal exposure to Hong Kong Flu to intelligence ... by Asian News International
Alcohol passes easily through placental barrier and, because the foetus is less equipped to break down alcohol than its mother, it receives a high concentration of alcohol.
DOC: AVOID BOOZE FOR 9 MONTHS by The Mirror (London, England)
Many substances a mother comes in contact with may cross the placental barrier and affect her fetus.
Update on the role of environmental toxins in neurodevelopmental ... by Kouris, Steven / The Exceptional Parent
 
 
 
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