Unit 2: Prenatal Development

The organ that grows during pregnancy that is rich in blood vessels that allow nutrients and oxygen to flow to the baby

• placenta

• umbilical cord

• uterus

• blastocyst

Liquid that surrounds and protects the developing baby in the uterus

• blood

• umbilical fluid

• water

• amniotic fluid

A long tube that connects the baby to the placenta and transmits oxygen and nourishment from the mother’s blood to the baby

• placenta

• umbilical cord

• amniotic fluid

• all the other choices are correct

A procedure in which sound waves are used to make a video image of the unborn baby

• ultrasound

• fetal monitoring

• incubator

• radio

The delivery of a baby through a surgical incision in the mother’s abdomen

• epidural

• Cesarean

• natural birth

• alternative birth

The name for the developing baby from about the third week of pregnancy through the eighth week

• zygote

• blastocyst

• fetus

• embryo

The stage of development that begins around the 8th or 9th week of pregnancy and lasts until birth

• fetus

• embryo

• zygote

• blastocyst

Which period of development is the longest?

• Period of the Embryo

• Period of the Zygote

• Period of the Fetus

The cervix dilates about_____________ during labor:

• 8 inches

• 10 cm

• 12 inches

• 5 cm

How many trimesters are there in a pregnancy?

• 2

• 3

• 5

• 9