Biological Development in Infancy and Childhood Flashcards
(141 cards)
T or f? Sperm meets egg; a child is conceived.
T
Some amount of chance is involved. T or f?
T
What refers to the act of becoming pregnant?
Conception
What involves the ovary’s release of a mature egg into the body cavity near the end of one of the fallopian tubes?
Ovulation
Where does fertilization occur?
The third of the fallopian tube nearest the ovary
T or f? Fertilization occurs during the exact moment sperm and egg meet.
T
What is a zygote?
The genetic material in the egg and sperm that combine to form the single-cell.
What chromosome do eggs contain?
X
What chromosome(s) does sperm contain?
X or Y
T or f? Eggs fertilized by sperm w/X = female and Y=male.
T
T or f? The single-celled zygote begins a cell division process in which the cell divides to form 2 cells, then 4, 8, and so on.
T
What refers to the period of time from conception to birth?
Gestation
How can pregnancy be detected?
Using laboratory tests, by observing the mother’s phys symptoms, performing a phys exam.
How accurate are lab tests and where can they be performed?
98 to 99 percent at a Planned Parenthood agency, a medical clinic, or a physician’s office
How do pregnancy tests work?
By detecting human chorionic gonadotropin (HCG) in a woman’s urine or blood.
How early can lab tests detect HCG?
8 days after conception
T or f? The use of home pregnancy tests (HPTs) has become quite common.
T
T or f? HPTs are more likely to be accurate if administered after more time has passed.
T
Most HPTs function in a similar fashion. T or f?
T
T or f? Most HPTs stress retaking the test a few days or a week later to confirm its accuracy.
T
T or f? Because HCG increases as the pregnancy progresses, HPTs become more accurate as time goes on.
T
T or f? Although research has suggested that most home preg. tests don’t consistently spot pregnancy early, hpts are deemed reliable when used according to package instruction 1 week after a missed period.
T
T or f? Although HPTs can be highly accurate there is room for error.
T
What can cause HPTs to be wrong?
Sunlight exposure, accidental vibrations, using an unclean container to collect urine, examining results too early or too late