Chapter 17 Vocabulary words Flashcards
(24 cards)
The reproductive cell from the female that joins with a sperm cell to make a new life.
Egg cell
The joining together of a male sperm cell and a female egg cell.
Fertilization
The cell from the male that enters the egg cell during fertilization.
Sperm cell
A pear-shaped organ inside a females body where the embryo is protected and nourished.
Uterus
The developing organism from fertilization to about the eight week of its development.
Embryo
The developing organism from the end of the eighth week until birth.
Fetus
A thick, rich tissue that lines the walls of the uterus during pregnancy and that nourishes the fetus.
Placenta
A tube that connects the mothers placenta to the fetus.
Umbilical cord
The entry to the uterus.
Cervix
The passing of traits from parents to their children.
Heredity
A threadlike structures found within the nucleus of a cell that carry the codes for inherited traits.
Chromosomes
The basic units of heredity.
Genes
Is a disorder caused partly or completely by a defect in genes.
Genetic disorder
The sum total of a persons surroundings.
Environment
Steps taken to provide for the health of a pregnant female and her baby.
Parental care
Abnormalities present at cause physical or mental disability or death
Birth defects
Events that need to happen in order for you to grow toward becoming a healthy, mature adult.
Developmental task
The first year of life.
Infancy
Are children between the ages of one and three who are learning to walk and talk.
Toddlers
Children between the ages of three and five.
Preschoolers
Is the time when you start developing physical characteristics of adults of your gender.
Puberty
Age measured in years.
Chronological age
Age determined by how well various body parts are working.
Biological age
Age measured by your lifestyle and the connections you have with others.
Social age
