Sentence Examples


  • About 30 percent of identical twins have this classification, and each twin has its own chorion, amnion, and placenta.
  • The placenta has one chorion and two amnions, so each twin has its own amniotic sac.
  • If the multiples are identical, only one chorion membrane is present.
  • The surface of the chorion is covered evenly with minute villi, constituting a diffuse non-deciduate placenta.