11 (textbook) Flashcards
Prenatal period:
extends from conception to birth, usually encompassing nine months of pregnancy
Placenta:
structure that allows oxygen and nutrients to pass into the fetus from the mother’s bloodstream, and bodily wastes to pass out to the mother
Germinal stage:
first phase of prenatal development, encompassing the first two weeks after conception
Embryonic stage:
second stage of prenatal development, lasting from two weeks until the end of the second month
Fetal stage:
third stage of prenatal development, lasting from two months through birth
Age of viability:
age at which a baby can survive in the event of a premature birth
Teratogens:
any external agents such as drugs or viruses, than can harm and embryo or fetus
Threshold of viability:
age at which a baby can survive in the event of a premature birth
Fetal alcohol syndrome:
collection of inborn problems associated with excessive alcohol use during pregnancy
Developmental norms:
indicate the median age at which individuals display various behaviours and abilities
Longitudinal design:
investigators observe one group of participants repeatedly over a period of time
Cross-sectional design:
investigators compare groups of participants of differing age at a single point in time
Cohort effects:
occur when differences between age groups are due to the groups growing up in different time periods
The prenatal period is divided into what three phases?
- Germinal
- Embryonic
- Fetal
Attachment:
close, emotional bonds that develop between infants and their caregivers