5 Written Questions

1. zygote
   embryo
   fetus
2. the developing baby from the time of implantation into the uterine wall through about the eighth week of pregnancy
   cells continue to multiply rapidly and is the size of the head of a pin
3. three-month time periods into which pregnancy is divided
4. a prenatal test that involves taking a sample of cells from the placenta
5. pregnancy in which the fertilized egg implants outside the uterus, usually in the fallopian tube
   a physican must end the pregnancy

5 Matching Questions

1. may increase the risk of miscarriage
2. umbilical cord
3. first trimester
4. ultrasound imaging
5. amniotic fluid

1. a age over 35
   previous miscarriage
   family history of miscarriage
   certain diseases or infections
   exposure to hazards during pregnancy such as alcohol, drugs, smoking, heavy caffeine use, or certain chemicals
2. b the heart begins to pump
   the baby grows from a few cells to about three inches long the eyes, ears, mouth, and nostrils begin to form
   the liver begins to produce bile and the kidneys to produce urine
3. c fluid that cushions a developing baby from outside pressures
4. d a process that uses sound waves to create video and still images of a fetus inside the uterus
5. e cord that connects the developing baby to the placenta

5 Multiple Choice Questions

1. the developing baby from the beginning of the ninth week of pregnancy until birth
   major organs are present and are still forming
   1. fetus
   2. zygote
   3. embryo
   4. trimesters
2. poor nutrition during pregnancy
   use of tobacco, alcohol, or other drugs
   certain prescription and over-the-counter medications
   exposure to X rays
   certain illnesses, such as chicken pox and rubella
   sexually tranmitted diseases and infections
   1. three types of prenatal tests
   2. premature birth
   3. genetic birth defects
   4. environmental causes of birth defects
3. fat tissue and body hair begin to form
   the baby may suck his or her thumb
   the senses develop as nerve cells make connections with the brain
   the mother begins to feel the baby move around and kick
   eyes open and close for the first time
   1. second trimester
   2. trimesters
   3. third trimester
   4. first trimester
4. ultrasound imaging, amniocentesis, chorionic villi sampling
   1. ectopic pregnancy
   2. premature birth
   3. three types of prenatal tests
   4. three stages of prenatal development
5. when a baby is born before the 37th week of pregnancy
   typically face underdeveloped lungs, fluid accumulation in the brain, seizures, and growth and learning delays
   1. stillbirth
   2. premature birth
   3. placenta
   4. embryo

5 True/False Questions

1. zygote → the earliest stage of human prenatal development
   the fertilized egg begins to divide into about 500 living cells that form a tiny, fluid-filled ball

   True        False

2. coping with the loss of a pregnancy → pregnancy in which the fertilized egg implants outside the uterus, usually in the fallopian tube
   a physican must end the pregnancy

   True        False

3. genetic birth defects → the death of a fetus after the twentieth week of pregnancy
   occurs in about 1 in every 200 pregnancies

   True        False

4. placenta → tissue that is attached to the uterine wall, contains a rich network of blood vessels, and is connected to the developing baby by the umbilical cord

   True        False

5. third trimester → lungs are almost fully developed
   the baby sleeps and may dream
   the baby turns his or her head downward, readying for birth

   True        False