Assertion: oxytocin | /r/CapableOf | pass through the placenta
Facets:
value: before childbirth
type: TEMPORAL
Source sentences:
text: Before childbirth, oxytocin from the mother`s blood passes through the placenta and reaches the fetus`s brain, where it acts on the neurotransmitter GABA, inhibiting the cortical activity during childbirth and thus protecting the brain from a possible oxygen deprivation.