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CH.4 Pregnancy

TermDefinition
Cell The smallest unit of life that is able to reproduce itself.
Sperm The male germ cell.
Ovum The female germ cell.
Conception The joining of these two cells.
Zygote At conception, ovum and sperm combine to form a single cell.
Fallopian Tubes Two hollow tubes that extend from the right and left sides of the uterus.
Uterus The organ in which the baby develops and is protected until birth.
Genetics Factors The trait passed through the genes.
Chromosomes Threadlike structures that carry genes in living cells.
Dominant Traits Traits that always show in a person even if only one gene of the pair is inherited for that traits.
Recessive Traits Traits that typically do not show in a person unless both genes for the traits are inherited.
Multiple Pregnancy Pregnancy in which two or more babies develop.
Fraternal Term describing children from multiple pregnancies who develop from two ova and differ in genetic makeup.
Chorion Membrane that surrounds the baby in the uterus.
Identical Term describing children from multiple pregnancies who develop from one fertilized ovum and have the same genetic makeup.
Prenatal Development The development that takes place between conception and birth.
Germinal Stage The first stage of prenatal development, which lasts about two weeks after conception.
Amnion A fluid-filled sac that surrounds the baby in the uterus.
Placenta An organ filled with blood vessels that nourishes the baby in the uterus.
Umbilical Cord The cord that connects the baby to the placenta.
Embryonic Stage The second stage of prenatal development, which lasts about six weeks.
Embryo Term used to describe a baby of the embryonic stage of development.
Cartilage Soft, elastic, flexible tissue that provides structure for the body.
Fetal Stage The third stage of pregnancy lasting about nine weeks after conception until birth.
Fetus Term used to describe a baby in the fetal stage of development.
Quickening Movements of the fetus that can be felt stage of development
Age of Viability The age in which most babies could survive if they were born (28 week of pregnancy).
Created by: mpayne17
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