Zygote - fertilized egg, Implantation - The process by which the zygote attaches to the uterine wall, Placenta - A structure that allows an embryo to be nourished with the mother's blood supply, Umbilical Cord - A long tube that connects the baby to the placenta and transmits oxygen and nourishment from the mother's blood to the baby, Embryo - the developing human organism from about 2 weeks after fertilization through the second month, Fetus - the developing human organism from 9 weeks after conception to birth, Fertilization - Process in sexual reproduction in which male and female reproductive cells join to form a new cell, First Trimester - Week 1-12 of Pregnancy, Second Trimester - Week 13-27 of Pregnancy, Third Trimester - Week 28 - 40 of Pregnancy, Amniotic Fluid - Liquid that surrounds and protects the developing baby in the uterus., Prenatal - the time between conception and delivery, Miscarriage - pregnancy ends before 20 weeks, Stillbirth - pregnancy ends after 20 weeks (fetus has died), Age of Viability - Also known as fetal viability, is the age at which a fetus can live outside of the womb., Lanugo - fine, soft hair, especially that which covers the body and limbs of a human fetus or newborn., Vernix Caseosa - a greasy deposit covering the skin of a baby at birth., Teratogen - an agent or factor which causes malformation of an embryo., Labor - the process by which the fetus and the placenta leave the uterus., Apgar Score - a test given one minute after a baby is born, then again five minutes later, that assesses a baby's appearance (skin colour), pulse, grimace (reflex), activity (muscle tone) and respiration. A perfect Apgar score is 10; typical Apgar scores are seven, eight or nine. A score lower than seven means that the baby might need help breathing, Premature - when a baby is born before 37 weeks gestation, Delivery - can occur in two ways, vaginally (through the birth canal) or by a cesarean (surgical) delivery, Childbirth - the action of giving birth to a child., Postpartum - following childbirth or the birth of young.,

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