Prenatal development, Birth & the newborn baby Flashcards
Any environmental agent that causes damage during the prenatal period:
Teratogens
What are 4 things that affect how harmful a teratogen is?
Dose, heredity, other negative influences and age
What prenatal period is the most at risk for serious defects?
the embryonic period (3-8 weeks)
Why is the embryonic period the most vulnerable?
the foundations for all the body parts are being laid down
What are three types of feral alcohol spectrum disorder (FASD)?
Fetal alcohol syndrome (FAS), partial fetal alcohol syndrome (p-FAS), and alcohol-related neurodevelopment disorder (ARND).
What is the first stage of prenatal development?
the period of the zygote
How long does the period of the zygote last?
2 weeks
When is the groundwork laid for all the body structures?
period of the embryo
When is the period of the embryo
week 2 to 8
When are the most of the brains neurons in place?
end of of second trimester
when is the developing organism most vulnerable?
embryonic period
What is the most dimly used potent teratogen?
accutane (acne treatment)
Babies born to users of cocaine, heroin. or methadone are at risk of?
premature birth, low birth weight, physical defects, breathing difficulties, and death
Prenatal malnutrition can lead to what?
low birth weight, organ damage, suppression of immune system development
