Ch 17 Test Flashcards
Egg cell
The reproductive cell from the female that joins with a sperm cell to form a new life
Fertilization
The joining together of a male sperm cell and a female egg cell
Sperm cell
The cell from the male that enters the egg cell during fertilization
Uterus
A pear-shaped organ inside a females body where the embryo is protected and nourished
Embryo
The developing organism from fertilization to about the 8th week of its development
Fetus
The developing organism from the end of 8 weeks 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
Passing of traits from parents to their children
Chromosomes
Threadlike structures found within the nucleus of a cell that carry the codes for inherited traits
Genes
The basic units of heredity
Genetic disorder
Disorder caused partly or completely by a defect in genes
Environment
The sum total of a persons surroundings
Prenatal care
Steps taken to provide for the health of a pregnant female and her baby
Birth defects
Abnormalities present at birth that cause physical or mental disability or death .
Developmental tasks
Events that need to happen in order for you to grow toward becoming a healthy mature adult
Infancy
First year of life
Toddlers
Children between the ages of 1 & 3 who are learning to walk and talk
Preschoolers
Children between the ages of 3&5
Puberty
The time when you start developing physical characteristics of adults of your gender
Chronological age
Age measured in years
Biological age
Age determined by how well various body parts are working
Social age
Age measured by your lifestyle and the connections you have with others
