The placenta prevents pathogenic microbes such as HIV and chemicals such as alcohol from reaching the babyʹs bloodstream.

Name: The placenta prevents pathogenic microbes such as HIV and chemicals such as alcohol from reaching the babyʹs bloodstream.
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The placenta does not completely prevent pathogenic microbes such as HIV or chemicals such as alcohol from reaching the baby's bloodstream. These substances can cross the placental barrier and potentially harm the developing fetus.

The Placenta Prevents Pathogenic Microbes Such as HIV and Chemicals