2Sexual IntercourseThe reproductive process in which the penis is inserted into the vagina and through which a new human life may begin
3Fertilization/Conception The union of the egg and sperm that takes place in the fallopian tubes
4ZygoteThe genetic material of the egg and sperm combined to form one cell
5Implantation The attachment of the fertilized egg to the uterus The egg is now known as a blastocyte, attaches to one of the walls in the upper 1/3 of the uterusThis happens within 3 to 5 days of fertilizationOnce implantation has happened a women is said to be pregnant
9Placenta An organ that develops in the uterus during pregnancy The placenta provides nourishment and oxygen to the growing baby and removes wasteSome refer to it as the afterbirth because it is excreted from the body following the birth of the babyMost substances are passed from the mother through the placenta to the baby
10Amniotic FluidThe watery substance that surrounds the growing fetus during its time in the wombThe fluid helps to cushion the baby from outside force
11AmniocentesisA medical procedure used for prenatal diagnosis, in which a small amount of amniotic fluid is extracted from the amniotic fluid around a developing fetusIt is usually offered when there may be an increased risk for genetic defects in the pregnancy.Early amniocentesis can be performed as early as 13 weeks gestationStandard amniocentesis is usually performed between 15 and 20 weeks gestation
12Ultrasoundused to visualize the embryo or fetus in its mother's uterus (womb)The procedure is often a standard part of prenatal care, as it yields a variety of information regarding the health of the mother and of the fetus, as well as regarding the progress of the pregnancy.
13Umbilical CordA hollow rope-like tube that connects the embryo to the placentaThe placenta carries nutrients and oxygen to the baby and takes waste away
14First Trimester The 1st 14 weeks of pregnancy The most important trimester because this is when the vital structures are formingThe embryo develops all of its organs and grows to about 1.5 inchesThe heart, brain, lungs, eyes, arms, and legs have formed – not all of them are fully functionalThe placenta and umbilical cord are also formed during this time
15Second Trimester Months 4-6 of pregnancy The organs continue to develop and movement can be felt by month 4The heartbeat can be heardThe fetus recognized voices and it grows hair and nailsBy the end of the 2nd trimester the fetus is about inches long and about 2 pounds
16Third Trimester Months 7-9 of pregnancy The fetus gains most of its weight during this trimester and is able to grasp objects as well as open and close its eyes
18FetusA developing human, from the start of the ninth week of pregnancy until delivery
19Labor/Natural Birththe culmination of a human pregnancy with the emergence of a newborn infant/s from the mother's uterus.Natural Birth which is most common is when the baby is delivered through the vaginaFirst stage: contractions/dilationSecond stage: deliveryThird stage: placenta/afterbirth
21Breech Birthrefers to the position of the baby in the uterus such that it will be delivered buttocks first as opposed to the normal head first position.
22Caesarean BirthA caesarean section or c-section, is a form of childbirth in which a surgical incision is made through a mother's abdomen and uterus to deliver one or more babiesIt is usually performed when a vaginal delivery would put the baby or mothers life at risk, although in the last decade it has been performed upon request.
23VernixVernix is the waxy or "cheesy" white substance found coating the skin of newborn humansVernix is the Latin word for "varnish." The vernix (or "varnish"), "varnishes" the baby.Vernix is composed of sebum (the oil of the skin) and cells that have sloughed off the fetus' skin.
24FontanelleFontanelles are soft spots on a baby's head which, during birth, enable the soft bony plates of the skull to flex, allowing the head to pass through the birth canalFontanelles are usually completely hardened by a child's second birthday, and will eventually form the sutures of the neurocranium.