The Extraembryonic Membrane That Forms Blood Is The - Web amniotic fluid is produced by dialysis of maternal and fetal blood through blood vessels in the placenta. Web in placental mammals, the extraembryonic membranes form a placenta and umbilical cord, which connect the.
Web in placental mammals, the extraembryonic membranes form a placenta and umbilical cord, which connect the. Web amniotic fluid is produced by dialysis of maternal and fetal blood through blood vessels in the placenta.