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11.73: Pregnancy and Childbirth

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

amniotic sac

amniotic sac

Fluid-filled membrane that surrounds the fetus.
childbirth

childbirth

Passage of the baby from the uterus, through the vagina, and out of the mother’s body.
embryo

embryo

Stage of development that occurs from implantation in the uterus through the eighth week after fertilization in humans.
fetus

fetus

Developing human baby at least eight weeks after fertilization.
placenta

placenta

Mass of maternal and fetal blood vessels where the the mother’s and fetus’s blood exchange substances.
umbilical cord

umbilical cord

Tube that connects the fetus to the placenta.

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Description

Difficulty Level:

At Grade

Grades:

7 , 8

Date Created:

Nov 29, 2012

Last Modified:

Mar 06, 2015
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