Chapter 17 Flashcards
Egg Cell
The reproductive cell from the female that joins with a sperm cell to make a new life.
Fertilization
The joining of a sperm cell and a egg cell.
Sperm Cell
The cell from a male that enter the egg cell in order to create new life during the fertilization process.
Uterus
A pear shaped organ inside the females body where the embryo is protected and nourished.
Embryo
The developing organism from fertilization to about the eighth week of its development.
Fetus
The developing organism from the end of the eighth week until birth.
Placenta
A thick rich tissue that lines the walls of the uterus during pregnancy and that nourishes the fetus.
Umbilical cord
A tube that connects the mothers placenta to the fetus.
Cervix
The entry to the uterus.
Heredity
The passing of traits from parents to their children.
Chromosomes
Threadlike structures found within the nucleus of a cell that carries the codes for the inherited traits.
Genes
The basic units of heredity.
Genetic Disorder
A disorder caused partly or completely by a defect in genes.
Environment
The sum total of a persons surroundings.
Parental Care
Steps taken to provide for the health of a pregnant female and her baby.