Assertion: amnion | /r/HasProperty | membranous sac
Facets:
Source sentences:
text: The amnion is a membranous sac which surrounds and protects the embryo.
text: The amniotic sac is the membranous bag that surrounds the fetus and fills with watery amniotic fluid as pregnancy advances.
text: The amnion is a membranous sac which surrounds and protects the embryo.
text: The amnion is a membranous sac which surrounds and protects the embryo.
text: The amnion is a membranous sac which surrounds and protects the embryo.
text: amnion - the innermost membranous sac enclosing the embryo of an amniote; it becomes filled with amniotic fluid.